2101211122110 has 64 divisors (see below), whose sum is σ = 5138771077440. Its totient is φ = 549674311680.

The previous prime is 2101211122081. The next prime is 2101211122117. The reversal of 2101211122110 is 112211121012.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2101211122110.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101211122117) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11819280 + ... + 11995740.

It is an arithmetic number, because the mean of its divisors is an integer number (80293298085).

Almost surely, 2^{2101211122110} is an apocalyptic number.

2101211122110 is an abundant number, since it is smaller than the sum of its proper divisors (3037559955330).

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

2101211122110 is a wasteful number, since it uses less digits than its factorization.

2101211122110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184013.

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

Adding to 2101211122110 its reverse (112211121012), we get a palindrome (2213422243122).

The spelling of 2101211122110 in words is "two trillion, one hundred one billion, two hundred eleven million, one hundred twenty-two thousand, one hundred ten".