1222111109973 has 32 divisors (see below), whose sum is σ = 1927497922560. Its totient is φ = 681508175040.

The previous prime is 1222111109971. The next prime is 1222111110029. The reversal of 1222111109973 is 3799011112221.

It is not a de Polignac number, because 1222111109973 - 2¹ = 1222111109971 is a prime.

It is a super-3 number, since 3×1222111109973³ (a number of 37 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222111109971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35836713 + ... + 35870798.

It is an arithmetic number, because the mean of its divisors is an integer number (60234310080).

Almost surely, 2^{1222111109973} is an apocalyptic number.

1222111109973 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1222111109973 is a deficient number, since it is larger than the sum of its proper divisors (705386812587).

1222111109973 is a wasteful number, since it uses less digits than its factorization.

1222111109973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71707569.

The product of its (nonzero) digits is 13608, while the sum is 39.

The spelling of 1222111109973 in words is "one trillion, two hundred twenty-two billion, one hundred eleven million, one hundred nine thousand, nine hundred seventy-three".