101122420140 has 180 divisors, whose sum is σ = 369016867296. Its totient is φ = 23113677888.

The previous prime is 101122420121. The next prime is 101122420153. The reversal of 101122420140 is 41024221101.

101122420140 is a `hidden beast` number, since 101 + 1 + 2 + 2 + 420 + 140 = 666.

It is a tau number, because it is divible by the number of its divisors (180).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 557572 + ... + 716331.

Almost surely, 2^101122420140 is an apocalyptic number.

101122420140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101122420140 is an abundant number, since it is smaller than the sum of its proper divisors (267894447156).

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

101122420140 is a wasteful number, since it uses less digits than its factorization.

101122420140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273938 (or 1273920 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 101122420140 its reverse (41024221101), we get a palindrome (142146641241).

The spelling of 101122420140 in words is "one hundred one billion, one hundred twenty-two million, four hundred twenty thousand, one hundred forty".