1231122021096 has 256 divisors, whose sum is σ = 3434737582080. Its totient is φ = 364605696000.

The previous prime is 1231122021061. The next prime is 1231122021097. The reversal of 1231122021096 is 6901202211321.

It is a super-2 number, since 2×1231122021096² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1231122021097) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1308311986 + ... + 1308312926.

It is an arithmetic number, because the mean of its divisors is an integer number (13416943680).

Almost surely, 2^{1231122021096} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1231122021096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1717368791040).

1231122021096 is an abundant number, since it is smaller than the sum of its proper divisors (2203615560984).

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

1231122021096 is a wasteful number, since it uses less digits than its factorization.

1231122021096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1568 (or 1564 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The spelling of 1231122021096 in words is "one trillion, two hundred thirty-one billion, one hundred twenty-two million, twenty-one thousand, ninety-six".