126132202231621 has 32 divisors (see below), whose sum is σ = 140858743132800. Its totient is φ = 112431432960000.

The previous prime is 126132202231613. The next prime is 126132202231639.

126132202231621 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 126132202231621 - 2³ = 126132202231613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126132202231601) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16733946 + ... + 23071396.

It is an arithmetic number, because the mean of its divisors is an integer number (4401835722900).

Almost surely, 2^{126132202231621} is an apocalyptic number.

It is an amenable number.

126132202231621 is a deficient number, since it is larger than the sum of its proper divisors (14726540901179).

126132202231621 is a wasteful number, since it uses less digits than its factorization.

126132202231621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6338421.

The product of its (nonzero) digits is 20736, while the sum is 34.

It can be divided in two parts, 12613220 and 2231621, that added together give a palindrome (14844841).

The spelling of 126132202231621 in words is "one hundred twenty-six trillion, one hundred thirty-two billion, two hundred two million, two hundred thirty-one thousand, six hundred twenty-one".