101012220021000 has 128 divisors (see below), whose sum is σ = 318407180232960. Its totient is φ = 26658895104000.

The previous prime is 101012220020911. The next prime is 101012220021019. The reversal of 101012220021000 is 120022210101.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 173269516 + ... + 173851515.

It is an arithmetic number, because the mean of its divisors is an integer number (2487556095570).

Almost surely, 2^{101012220021000} is an apocalyptic number.

101012220021000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101012220021000 is an abundant number, since it is smaller than the sum of its proper divisors (217394960211960).

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

101012220021000 is a wasteful number, since it uses less digits than its factorization.

101012220021000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347121152 (or 347121138 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 101012220021000 its reverse (120022210101), we get a palindrome (101132242231101).

The spelling of 101012220021000 in words is "one hundred one trillion, twelve billion, two hundred twenty million, twenty-one thousand".