101111020211020 has 48 divisors (see below), whose sum is σ = 215106674428800. Its totient is φ = 39918388506624.

The previous prime is 101111020211017. The next prime is 101111020211023. The reversal of 101111020211020 is 20112020111101.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (101111020211017) and next prime (101111020211023).

It is a super-2 number, since 2×101111020211020² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (101111020211023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70294945 + ... + 71718904.

It is an arithmetic number, because the mean of its divisors is an integer number (4481389050600).

Almost surely, 2^{101111020211020} is an apocalyptic number.

101111020211020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101111020211020 is an abundant number, since it is smaller than the sum of its proper divisors (113995654217780).

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

101111020211020 is a wasteful number, since it uses less digits than its factorization.

101111020211020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142014322 (or 142014320 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 101111020211020 its reverse (20112020111101), we get a palindrome (121223040322121).

The spelling of 101111020211020 in words is "one hundred one trillion, one hundred eleven billion, twenty million, two hundred eleven thousand, twenty".