1222121122130 has 16 divisors (see below), whose sum is σ = 2221598398104. Its totient is φ = 484008364800.

The previous prime is 1222121122129. The next prime is 1222121122151. The reversal of 1222121122130 is 312211212221.

It can be written as a sum of positive squares in 4 ways, for example, as 1218261855001 + 3859267129 = 1103749^2 + 62123^2 .

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, 605009447 + ... + 605011466.

Almost surely, 2^{1222121122130} is an apocalyptic number.

1222121122130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1222121122130 is a deficient number, since it is larger than the sum of its proper divisors (999477275974).

1222121122130 is a wasteful number, since it uses less digits than its factorization.

1222121122130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1210021021.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 1222121122130 its reverse (312211212221), we get a palindrome (1534332334351).

Subtracting from 1222121122130 its reverse (312211212221), we obtain a palindrome (909909909909).

The spelling of 1222121122130 in words is "one trillion, two hundred twenty-two billion, one hundred twenty-one million, one hundred twenty-two thousand, one hundred thirty".