2101100220102 has 32 divisors (see below), whose sum is σ = 4525501915872. Its totient is φ = 646484477184.

The previous prime is 2101100220101. The next prime is 2101100220119. The reversal of 2101100220102 is 2010220011012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101100220101) 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, 11828448 + ... + 12004764.

It is an arithmetic number, because the mean of its divisors is an integer number (141421934871).

Almost surely, 2^{2101100220102} is an apocalyptic number.

2101100220102 is an abundant number, since it is smaller than the sum of its proper divisors (2424401695770).

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

2101100220102 is a wasteful number, since it uses less digits than its factorization.

2101100220102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329112.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2101100220102 its reverse (2010220011012), we get a palindrome (4111320231114).

The spelling of 2101100220102 in words is "two trillion, one hundred one billion, one hundred million, two hundred twenty thousand, one hundred two".