1219902199022 has 32 divisors (see below), whose sum is σ = 2004494657760. Its totient is φ = 553355412480.

The previous prime is 1219902199003. The next prime is 1219902199027. The reversal of 1219902199022 is 2209912099121.

It is a super-2 number, since 2×1219902199022² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1219902199027) 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, 6411938 + ... + 6599450.

It is an arithmetic number, because the mean of its divisors is an integer number (62640458055).

Almost surely, 2^{1219902199022} is an apocalyptic number.

1219902199022 is a deficient number, since it is larger than the sum of its proper divisors (784592458738).

1219902199022 is a wasteful number, since it uses less digits than its factorization.

1219902199022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191828.

The product of its (nonzero) digits is 104976, while the sum is 47.

Subtracting 1219902199022 from its reverse (2209912099121), we obtain a palindrome (990009900099).

The spelling of 1219902199022 in words is "one trillion, two hundred nineteen billion, nine hundred two million, one hundred ninety-nine thousand, twenty-two".