1221222022119 has 96 divisors (see below), whose sum is σ = 2034676800000. Its totient is φ = 698951151360.

The previous prime is 1221222022099. The next prime is 1221222022121. The reversal of 1221222022119 is 9112202221221.

1221222022119 is a `hidden beast` number, since 1 + 2 + 212 + 220 + 221 + 1 + 9 = 666.

It is not a de Polignac number, because 1221222022119 - 2¹³ = 1221222013927 is a prime.

It is a super-2 number, since 2×1221222022119² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1221222022092 and 1221222022101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1221222022159) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 33690297 + ... + 33726525.

It is an arithmetic number, because the mean of its divisors is an integer number (21194550000).

Almost surely, 2^{1221222022119} is an apocalyptic number.

1221222022119 is a deficient number, since it is larger than the sum of its proper divisors (813454777881).

1221222022119 is a wasteful number, since it uses less digits than its factorization.

1221222022119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36533 (or 36530 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The spelling of 1221222022119 in words is "one trillion, two hundred twenty-one billion, two hundred twenty-two million, twenty-two thousand, one hundred nineteen".