2210121023100 has 72 divisors (see below), whose sum is σ = 6398567965440. Its totient is φ = 589001446080.

The previous prime is 2210121023093. The next prime is 2210121023101. The reversal of 2210121023100 is 13201210122.

It is a super-2 number, since 2×2210121023100² (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 2210121023100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2210121023101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1789492 + ... + 2760891.

It is an arithmetic number, because the mean of its divisors is an integer number (88868999520).

Almost surely, 2^{2210121023100} is an apocalyptic number.

2210121023100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2210121023100 is an abundant number, since it is smaller than the sum of its proper divisors (4188446942340).

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

2210121023100 is a wasteful number, since it uses less digits than its factorization.

2210121023100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4552019 (or 4552012 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 2210121023100 its reverse (13201210122), we get a palindrome (2223322233222).

The spelling of 2210121023100 in words is "two trillion, two hundred ten billion, one hundred twenty-one million, twenty-three thousand, one hundred".