1222397880874 has 16 divisors (see below), whose sum is σ = 1835394788448. Its totient is φ = 610599915792.

The previous prime is 1222397880871. The next prime is 1222397880953. The reversal of 1222397880874 is 4780887932221.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1222397880871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8372104 + ... + 8516860.

It is an arithmetic number, because the mean of its divisors is an integer number (114712174278).

Almost surely, 2^{1222397880874} is an apocalyptic number.

1222397880874 is a deficient number, since it is larger than the sum of its proper divisors (612996907574).

1222397880874 is a wasteful number, since it uses less digits than its factorization.

1222397880874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148869.

The product of its (nonzero) digits is 21676032, while the sum is 61.

The spelling of 1222397880874 in words is "one trillion, two hundred twenty-two billion, three hundred ninety-seven million, eight hundred eighty thousand, eight hundred seventy-four".