1202020221 has 8 divisors (see below), whose sum is σ = 1646009824. Its totient is φ = 779688720.

The previous prime is 1202020213. The next prime is 1202020223. The reversal of 1202020221 is 1220202021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1202020221 - 2³ = 1202020213 is a prime.

It is a super-2 number, since 2×1202020221² = 2889705223385777682, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1202020197 and 1202020206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202020223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5414395 + ... + 5414616.

It is an arithmetic number, because the mean of its divisors is an integer number (205751228).

Almost surely, 2^1202020221 is an apocalyptic number.

It is an amenable number.

1202020221 is a deficient number, since it is larger than the sum of its proper divisors (443989603).

1202020221 is a wasteful number, since it uses less digits than its factorization.

1202020221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10829051.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 1202020221 is about 34670.1632675706. The cubic root of 1202020221 is about 1063.2545696145.

Adding to 1202020221 its reverse (1220202021), we get a palindrome (2422222242).

The spelling of 1202020221 in words is "one billion, two hundred two million, twenty thousand, two hundred twenty-one".