101621641251142 has 16 divisors (see below), whose sum is σ = 152657627319360. Its totient is φ = 50735798644608.

The previous prime is 101621641251101. The next prime is 101621641251191. The reversal of 101621641251142 is 241152146126101.

It is a super-2 number, since 2×101621641251142² (a number of 29 digits) contains 22 as substring.

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, 2159758 + ... + 14419009.

It is an arithmetic number, because the mean of its divisors is an integer number (9541101707460).

Almost surely, 2^{101621641251142} is an apocalyptic number.

101621641251142 is a deficient number, since it is larger than the sum of its proper divisors (51035986068218).

101621641251142 is a wasteful number, since it uses less digits than its factorization.

101621641251142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16583295.

The product of its (nonzero) digits is 23040, while the sum is 37.

Adding to 101621641251142 its reverse (241152146126101), we get a palindrome (342773787377243).

The spelling of 101621641251142 in words is "one hundred one trillion, six hundred twenty-one billion, six hundred forty-one million, two hundred fifty-one thousand, one hundred forty-two".