1210222121120 has 48 divisors (see below), whose sum is σ = 2957741143560. Its totient is φ = 467396127744.

The previous prime is 1210222121107. The next prime is 1210222121159. The reversal of 1210222121120 is 211212220121.

It can be written as a sum of positive squares in 4 ways, for example, as 653103189904 + 557118931216 = 808148^2 + 746404^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130407227 + ... + 130416506.

Almost surely, 2^{1210222121120} is an apocalyptic number.

1210222121120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210222121120 is an abundant number, since it is smaller than the sum of its proper divisors (1747519022440).

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

1210222121120 is a wasteful number, since it uses less digits than its factorization.

1210222121120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260823777 (or 260823769 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1210222121120 its reverse (211212220121), we get a palindrome (1421434341241).

Subtracting from 1210222121120 its reverse (211212220121), we obtain a palindrome (999009900999).

The spelling of 1210222121120 in words is "one trillion, two hundred ten billion, two hundred twenty-two million, one hundred twenty-one thousand, one hundred twenty".