210021121120202 has 32 divisors (see below), whose sum is σ = 381492459666432. Its totient is φ = 84652701444864.

The previous prime is 210021121120171. The next prime is 210021121120259. The reversal of 210021121120202 is 202021121120012.

It is a Harshad number since it is a multiple of its sum of digits (17).

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, 321028538 + ... + 321682085.

It is an arithmetic number, because the mean of its divisors is an integer number (11921639364576).

Almost surely, 2^{210021121120202} is an apocalyptic number.

210021121120202 is a deficient number, since it is larger than the sum of its proper divisors (171471338546230).

210021121120202 is a wasteful number, since it uses less digits than its factorization.

210021121120202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642712022.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 210021121120202 its reverse (202021121120012), we get a palindrome (412042242240214).

The spelling of 210021121120202 in words is "two hundred ten trillion, twenty-one billion, one hundred twenty-one million, one hundred twenty thousand, two hundred two".