135121405022 has 16 divisors (see below), whose sum is σ = 203298478992. Its totient is φ = 67355558400.

The previous prime is 135121405019. The next prime is 135121405039. The reversal of 135121405022 is 220504121531.

It is a junction number, because it is equal to n+sod(n) for n = 135121404982 and 135121405000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 793022 + ... + 948222.

It is an arithmetic number, because the mean of its divisors is an integer number (12706154937).

Almost surely, 2^135121405022 is an apocalyptic number.

135121405022 is a deficient number, since it is larger than the sum of its proper divisors (68177073970).

135121405022 is a wasteful number, since it uses less digits than its factorization.

135121405022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156523.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 135121405022 its reverse (220504121531), we get a palindrome (355625526553).

The spelling of 135121405022 in words is "one hundred thirty-five billion, one hundred twenty-one million, four hundred five thousand, twenty-two".