210101021121102 has 32 divisors (see below), whose sum is σ = 454272478108800. Its totient is φ = 64554510044448.

The previous prime is 210101021121041. The next prime is 210101021121109. The reversal of 210101021121102 is 201121120101012.

It is a happy number.

It is a super-2 number, since 2×210101021121102² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210101021121109) 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, 24905285152 + ... + 24905293587.

It is an arithmetic number, because the mean of its divisors is an integer number (14196014940900).

Almost surely, 2^{210101021121102} is an apocalyptic number.

210101021121102 is an abundant number, since it is smaller than the sum of its proper divisors (244171456987698).

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

210101021121102 is a wasteful number, since it uses less digits than its factorization.

210101021121102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49810578800.

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

Adding to 210101021121102 its reverse (201121120101012), we get a palindrome (411222141222114).

The spelling of 210101021121102 in words is "two hundred ten trillion, one hundred one billion, twenty-one million, one hundred twenty-one thousand, one hundred two".