202121122001112 has 24 divisors (see below), whose sum is σ = 547411372086540. Its totient is φ = 67373707333680.

The previous prime is 202121122001047. The next prime is 202121122001137. The reversal of 202121122001112 is 211100221121202.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1403618902714 + ... + 1403618902857.

Almost surely, 2^{202121122001112} is an apocalyptic number.

It is an amenable number.

202121122001112 is an abundant number, since it is smaller than the sum of its proper divisors (345290250085428).

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

202121122001112 is a wasteful number, since it uses less digits than its factorization.

202121122001112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2807237805583 (or 2807237805576 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 202121122001112 its reverse (211100221121202), we get a palindrome (413221343122314).

The spelling of 202121122001112 in words is "two hundred two trillion, one hundred twenty-one billion, one hundred twenty-two million, one thousand, one hundred twelve".