134212401021 has 16 divisors (see below), whose sum is σ = 184733452800. Its totient is φ = 86583485760.

The previous prime is 134212401017. The next prime is 134212401031. The reversal of 134212401021 is 120104212431.

It is not a de Polignac number, because 134212401021 - 2² = 134212401017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134212401031) 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, 2093755 + ... + 2156903.

It is an arithmetic number, because the mean of its divisors is an integer number (11545840800).

Almost surely, 2^134212401021 is an apocalyptic number.

It is an amenable number.

134212401021 is a deficient number, since it is larger than the sum of its proper divisors (50521051779).

134212401021 is a wasteful number, since it uses less digits than its factorization.

134212401021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86036.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 134212401021 its reverse (120104212431), we get a palindrome (254316613452).

The spelling of 134212401021 in words is "one hundred thirty-four billion, two hundred twelve million, four hundred one thousand, twenty-one".