1222212011986 has 16 divisors (see below), whose sum is σ = 2096304560064. Its totient is φ = 523534155984.

The previous prime is 1222212011983. The next prime is 1222212011987. The reversal of 1222212011986 is 6891102122221.

It is not an unprimeable number, because it can be changed into a prime (1222212011983) 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, 22554640 + ... + 22608763.

It is an arithmetic number, because the mean of its divisors is an integer number (131019035004).

Almost surely, 2^{1222212011986} is an apocalyptic number.

1222212011986 is a deficient number, since it is larger than the sum of its proper divisors (874092548078).

1222212011986 is a wasteful number, since it uses less digits than its factorization.

1222212011986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45165345.

The product of its (nonzero) digits is 13824, while the sum is 37.

The spelling of 1222212011986 in words is "one trillion, two hundred twenty-two billion, two hundred twelve million, eleven thousand, nine hundred eighty-six".