121435214442 has 32 divisors (see below), whose sum is σ = 250861584384. Its totient is φ = 39148177200.

The previous prime is 121435214441. The next prime is 121435214471. The reversal of 121435214442 is 244412534121.

It is a super-2 number, since 2×121435214442² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121435214441) 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, 95767 + ... + 502037.

It is an arithmetic number, because the mean of its divisors is an integer number (7839424512).

Almost surely, 2^121435214442 is an apocalyptic number.

121435214442 is an abundant number, since it is smaller than the sum of its proper divisors (129426369942).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121435214442 is a wasteful number, since it uses less digits than its factorization.

121435214442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407914.

The product of its digits is 30720, while the sum is 33.

Adding to 121435214442 its reverse (244412534121), we get a palindrome (365847748563).

The spelling of 121435214442 in words is "one hundred twenty-one billion, four hundred thirty-five million, two hundred fourteen thousand, four hundred forty-two".