202121111210010 has 32 divisors (see below), whose sum is σ = 485106832827072. Its totient is φ = 53897166775680.

The previous prime is 202121111209967. The next prime is 202121111210041. The reversal of 202121111210010 is 10012111121202.

It is a happy number.

202121111210010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111348019 + ... + 113148678.

It is an arithmetic number, because the mean of its divisors is an integer number (15159588525846).

Almost surely, 2^{202121111210010} is an apocalyptic number.

202121111210010 is an abundant number, since it is smaller than the sum of its proper divisors (282985721617062).

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

202121111210010 is a wasteful number, since it uses less digits than its factorization.

202121111210010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224526718.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 202121111210010 its reverse (10012111121202), we get a palindrome (212133222331212).

The spelling of 202121111210010 in words is "two hundred two trillion, one hundred twenty-one billion, one hundred eleven million, two hundred ten thousand, ten".