2101120212210 has 32 divisors (see below), whose sum is σ = 5042994083712. Its totient is φ = 560264770560.

The previous prime is 2101120212203. The next prime is 2101120212211. The reversal of 2101120212210 is 122120211012.

It is a super-2 number, since 2×2101120212210² (a number of 25 digits) contains 22 as substring.

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 2101120212210.

It is not an unprimeable number, because it can be changed into a prime (2101120212211) 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, 1616751 + ... + 2610770.

It is an arithmetic number, because the mean of its divisors is an integer number (157593565116).

Almost surely, 2^{2101120212210} is an apocalyptic number.

2101120212210 is an abundant number, since it is smaller than the sum of its proper divisors (2941873871502).

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

2101120212210 is a wasteful number, since it uses less digits than its factorization.

2101120212210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4244098.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2101120212210 its reverse (122120211012), we get a palindrome (2223240423222).

The spelling of 2101120212210 in words is "two trillion, one hundred one billion, one hundred twenty million, two hundred twelve thousand, two hundred ten".