1222100121096 has 80 divisors (see below), whose sum is σ = 3425313483900. Its totient is φ = 407092801536.

The previous prime is 1222100121041. The next prime is 1222100121097. The reversal of 1222100121096 is 6901210012221.

It can be written as a sum of positive squares in 2 ways, for example, as 1136385848196 + 85714272900 = 1066014^2 + 292770^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1222100121097) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 331576 + ... + 1598168.

Almost surely, 2^{1222100121096} 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 1222100121096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1712656741950).

1222100121096 is an abundant number, since it is smaller than the sum of its proper divisors (2203213362804).

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

1222100121096 is a wasteful number, since it uses less digits than its factorization.

1222100121096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1268100 (or 1268087 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The spelling of 1222100121096 in words is "one trillion, two hundred twenty-two billion, one hundred million, one hundred twenty-one thousand, ninety-six".