202121112120222 has 32 divisors (see below), whose sum is σ = 415417340362752. Its totient is φ = 65513374604064.

The previous prime is 202121112120217. The next prime is 202121112120227. The reversal of 202121112120222 is 222021211121202.

It is an interprime number because it is at equal distance from previous prime (202121112120217) and next prime (202121112120227).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202121112120227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 273369678 + ... + 274108049.

It is an arithmetic number, because the mean of its divisors is an integer number (12981791886336).

Almost surely, 2^{202121112120222} is an apocalyptic number.

202121112120222 is an abundant number, since it is smaller than the sum of its proper divisors (213296228242530).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202121112120222 is a wasteful number, since it uses less digits than its factorization.

202121112120222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547479432.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 202121112120222 its reverse (222021211121202), we get a palindrome (424142323241424).

It can be divided in two parts, 2021211121202 and 22, that multiplied together give a palindrome (44466644666444).

The spelling of 202121112120222 in words is "two hundred two trillion, one hundred twenty-one billion, one hundred twelve million, one hundred twenty thousand, two hundred twenty-two".