202202012202121 has 16 divisors (see below), whose sum is σ = 206301139394560. Its totient is φ = 198146784710160.

The previous prime is 202202012202119. The next prime is 202202012202139. The reversal of 202202012202121 is 121202210202202.

It is a cyclic number.

It is not a de Polignac number, because 202202012202121 - 2¹ = 202202012202119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202202012202721) 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, 11506635 + ... + 23169088.

It is an arithmetic number, because the mean of its divisors is an integer number (12893821212160).

Almost surely, 2^{202202012202121} is an apocalyptic number.

It is an amenable number.

202202012202121 is a deficient number, since it is larger than the sum of its proper divisors (4099127192439).

202202012202121 is a wasteful number, since it uses less digits than its factorization.

202202012202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34676356.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 202202012202121 its reverse (121202210202202), we get a palindrome (323404222404323).

The spelling of 202202012202121 in words is "two hundred two trillion, two hundred two billion, twelve million, two hundred two thousand, one hundred twenty-one".