121402242044 has 12 divisors (see below), whose sum is σ = 213132692304. Its totient is φ = 60507187104.

The previous prime is 121402242007. The next prime is 121402242089. The reversal of 121402242044 is 440242204121.

It is a happy number.

It is a super-2 number, since 2×121402242044² (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, 48482072 + ... + 48484575.

It is an arithmetic number, because the mean of its divisors is an integer number (17761057692).

Almost surely, 2^121402242044 is an apocalyptic number.

It is an amenable number.

121402242044 is a deficient number, since it is larger than the sum of its proper divisors (91730450260).

121402242044 is a wasteful number, since it uses less digits than its factorization.

121402242044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96966964 (or 96966962 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 26.

Adding to 121402242044 its reverse (440242204121), we get a palindrome (561644446165).

The spelling of 121402242044 in words is "one hundred twenty-one billion, four hundred two million, two hundred forty-two thousand, forty-four".