101542771220 has 48 divisors (see below), whose sum is σ = 244868702400. Its totient is φ = 34981240320.

The previous prime is 101542771217. The next prime is 101542771223. The reversal of 101542771220 is 22177245101.

It is an interprime number because it is at equal distance from previous prime (101542771217) and next prime (101542771223).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101542771223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12142085 + ... + 12150444.

It is an arithmetic number, because the mean of its divisors is an integer number (5101431300).

Almost surely, 2^101542771220 is an apocalyptic number.

101542771220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101542771220 is an abundant number, since it is smaller than the sum of its proper divisors (143325931180).

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

101542771220 is a wasteful number, since it uses less digits than its factorization.

101542771220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24292568 (or 24292566 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 32.

The spelling of 101542771220 in words is "one hundred one billion, five hundred forty-two million, seven hundred seventy-one thousand, two hundred twenty".