142401636221 has 48 divisors (see below), whose sum is σ = 168493765440. Its totient is φ = 119294622720.

The previous prime is 142401636211. The next prime is 142401636253. The reversal of 142401636221 is 122636104241.

It is not a de Polignac number, because 142401636221 - 2³⁰ = 141327894397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142401636211) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27209621 + ... + 27214853.

It is an arithmetic number, because the mean of its divisors is an integer number (3510286780).

Almost surely, 2^142401636221 is an apocalyptic number.

It is an amenable number.

142401636221 is a deficient number, since it is larger than the sum of its proper divisors (26092129219).

142401636221 is a wasteful number, since it uses less digits than its factorization.

142401636221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5454 (or 5425 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The spelling of 142401636221 in words is "one hundred forty-two billion, four hundred one million, six hundred thirty-six thousand, two hundred twenty-one".