121202112442 has 32 divisors (see below), whose sum is σ = 194002833024. Its totient is φ = 56592000000.

The previous prime is 121202112439. The next prime is 121202112463. The reversal of 121202112442 is 244211202121.

It is a super-2 number, since 2×121202112442² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2217442 + ... + 2271442.

It is an arithmetic number, because the mean of its divisors is an integer number (6062588532).

Almost surely, 2^121202112442 is an apocalyptic number.

121202112442 is a deficient number, since it is larger than the sum of its proper divisors (72800720582).

121202112442 is a wasteful number, since it uses less digits than its factorization.

121202112442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54534.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 121202112442 its reverse (244211202121), we get a palindrome (365413314563).

The spelling of 121202112442 in words is "one hundred twenty-one billion, two hundred two million, one hundred twelve thousand, four hundred forty-two".