20121202 has 4 divisors (see below), whose sum is σ = 30181806. Its totient is φ = 10060600.

The previous prime is 20121193. The next prime is 20121271. The reversal of 20121202 is 20212102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12453841 + 7667361 = 3529^2 + 2769^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5030299 + ... + 5030302.

Almost surely, 2^20121202 is an apocalyptic number.

20121202 is a deficient number, since it is larger than the sum of its proper divisors (10060604).

20121202 is a wasteful number, since it uses less digits than its factorization.

20121202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10060603.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 20121202 is about 4485.6662827277. Note that the first 3 decimals coincide. The cubic root of 20121202 is about 271.9889791527.

Adding to 20121202 its reverse (20212102), we get a palindrome (40333304).

The spelling of 20121202 in words is "twenty million, one hundred twenty-one thousand, two hundred two".