1222212131232 has 24 divisors (see below), whose sum is σ = 3208306844736. Its totient is φ = 407404043712.

The previous prime is 1222212131227. The next prime is 1222212131237. The reversal of 1222212131232 is 2321312122221.

It is an interprime number because it is at equal distance from previous prime (1222212131227) and next prime (1222212131237).

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1222212131237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6365688088 + ... + 6365688279.

It is an arithmetic number, because the mean of its divisors is an integer number (133679451864).

Almost surely, 2^{1222212131232} is an apocalyptic number.

1222212131232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1222212131232 is an abundant number, since it is smaller than the sum of its proper divisors (1986094713504).

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

1222212131232 is a wasteful number, since it uses less digits than its factorization.

1222212131232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12731376380 (or 12731376372 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

Adding to 1222212131232 its reverse (2321312122221), we get a palindrome (3543524253453).

The spelling of 1222212131232 in words is "one trillion, two hundred twenty-two billion, two hundred twelve million, one hundred thirty-one thousand, two hundred thirty-two".