1022220999999 has 16 divisors (see below), whose sum is σ = 1540069305600. Its totient is φ = 669930145848.

The previous prime is 1022220999973. The next prime is 1022221000001. The reversal of 1022220999999 is 9999990222201.

It is not a de Polignac number, because 1022220999999 - 2⁵ = 1022220999967 is a prime.

It is a super-5 number, since 5×1022220999999⁵ (a number of 61 digits) contains 55555 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022220999599) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 320846179 + ... + 320849364.

It is an arithmetic number, because the mean of its divisors is an integer number (96254331600).

Almost surely, 2^{1022220999999} is an apocalyptic number.

1022220999999 is a deficient number, since it is larger than the sum of its proper divisors (517848305601).

1022220999999 is an equidigital number, since it uses as much as digits as its factorization.

1022220999999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641695611 (or 641695605 counting only the distinct ones).

The product of its (nonzero) digits is 8503056, while the sum is 63.

The spelling of 1022220999999 in words is "one trillion, twenty-two billion, two hundred twenty million, nine hundred ninety-nine thousand, nine hundred ninety-nine".