2231220121100 has 36 divisors (see below), whose sum is σ = 4841837889000. Its totient is φ = 892471416960.

The previous prime is 2231220121093. The next prime is 2231220121121. The reversal of 2231220121100 is 11210221322.

It is a super-3 number, since 3×2231220121100³ (a number of 38 digits) contains 333 as substring.

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, 6153656 + ... + 6506144.

Almost surely, 2^{2231220121100} is an apocalyptic number.

2231220121100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2231220121100 is an abundant number, since it is smaller than the sum of its proper divisors (2610617767900).

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

2231220121100 is a wasteful number, since it uses less digits than its factorization.

2231220121100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415802 (or 415795 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 2231220121100 its reverse (11210221322), we get a palindrome (2242430342422).

The spelling of 2231220121100 in words is "two trillion, two hundred thirty-one billion, two hundred twenty million, one hundred twenty-one thousand, one hundred".