142211131636 has 24 divisors (see below), whose sum is σ = 284489065280. Its totient is φ = 60933313152.

The previous prime is 142211131633. The next prime is 142211131637. The reversal of 142211131636 is 636131112241.

It is a super-2 number, since 2×142211131636² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 142211131598 and 142211131607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142211131633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 474666 + ... + 713953.

Almost surely, 2^142211131636 is an apocalyptic number.

It is an amenable number.

142211131636 is an abundant number, since it is smaller than the sum of its proper divisors (142277933644).

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

142211131636 is a wasteful number, since it uses less digits than its factorization.

142211131636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1192903 (or 1192901 counting only the distinct ones).

The product of its digits is 5184, while the sum is 31.

Adding to 142211131636 its reverse (636131112241), we get a palindrome (778342243877).

The spelling of 142211131636 in words is "one hundred forty-two billion, two hundred eleven million, one hundred thirty-one thousand, six hundred thirty-six".