2120221210100 has 36 divisors (see below), whose sum is σ = 5258148602784. Its totient is φ = 726932986080.

The previous prime is 2120221210091. The next prime is 2120221210127. The reversal of 2120221210100 is 10121220212.

It is a super-3 number, since 3×2120221210100³ (a number of 38 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1514443022 + ... + 1514444421.

Almost surely, 2^{2120221210100} is an apocalyptic number.

2120221210100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120221210100 is an abundant number, since it is smaller than the sum of its proper divisors (3137927392684).

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

2120221210100 is a wasteful number, since it uses less digits than its factorization.

2120221210100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3028887464 (or 3028887457 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2120221210100 its reverse (10121220212), we get a palindrome (2130342430312).

The spelling of 2120221210100 in words is "two trillion, one hundred twenty billion, two hundred twenty-one million, two hundred ten thousand, one hundred".