121012442044 has 12 divisors (see below), whose sum is σ = 228061910104. Its totient is φ = 55851896304.

The previous prime is 121012442027. The next prime is 121012442063. The reversal of 121012442044 is 440244210121.

It is a happy number.

It is a super-2 number, since 2×121012442044² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1163581122 + ... + 1163581225.

Almost surely, 2^121012442044 is an apocalyptic number.

It is an amenable number.

121012442044 is a deficient number, since it is larger than the sum of its proper divisors (107049468060).

121012442044 is a wasteful number, since it uses less digits than its factorization.

121012442044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2327162364 (or 2327162362 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 121012442044 its reverse (440244210121), we get a palindrome (561256652165).

The spelling of 121012442044 in words is "one hundred twenty-one billion, twelve million, four hundred forty-two thousand, forty-four".