2021120222 has 16 divisors (see below), whose sum is σ = 3353871744. Its totient is φ = 905751000.

The previous prime is 2021120221. The next prime is 2021120249. The reversal of 2021120222 is 2220211202.

It is a junction number, because it is equal to n+sod(n) for n = 2021120197 and 2021120206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021120221) 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, 645404 + ... + 648527.

It is an arithmetic number, because the mean of its divisors is an integer number (209616984).

Almost surely, 2^2021120222 is an apocalyptic number.

2021120222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2021120222 is a deficient number, since it is larger than the sum of its proper divisors (1332751522).

2021120222 is a wasteful number, since it uses less digits than its factorization.

2021120222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1294015.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2021120222 is about 44956.8706873599. The cubic root of 2021120222 is about 1264.3404983008.

Adding to 2021120222 its reverse (2220211202), we get a palindrome (4241331424).

It can be divided in two parts, 20211202 and 22, that multiplied together give a palindrome (444646444).

The spelling of 2021120222 in words is "two billion, twenty-one million, one hundred twenty thousand, two hundred twenty-two".