101139221870 has 16 divisors (see below), whose sum is σ = 182106314208. Its totient is φ = 40443307680.

The previous prime is 101139221851. The next prime is 101139221873. The reversal of 101139221870 is 78122931101.

It is a self number, because there is not a number n which added to its sum of digits gives 101139221870.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101139221873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1513289 + ... + 1578708.

It is an arithmetic number, because the mean of its divisors is an integer number (11381644638).

Almost surely, 2^101139221870 is an apocalyptic number.

101139221870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101139221870 is a deficient number, since it is larger than the sum of its proper divisors (80967092338).

101139221870 is a wasteful number, since it uses less digits than its factorization.

101139221870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3095275.

The product of its (nonzero) digits is 6048, while the sum is 35.

The spelling of 101139221870 in words is "one hundred one billion, one hundred thirty-nine million, two hundred twenty-one thousand, eight hundred seventy".