101002120101021 has 32 divisors (see below), whose sum is σ = 143101369267200. Its totient is φ = 63147169684224.

The previous prime is 101002120100983. The next prime is 101002120101037. The reversal of 101002120101021 is 120101021200101.

It is not a de Polignac number, because 101002120101021 - 2¹⁵ = 101002120068253 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101002120100988 and 101002120101006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101002120101041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 357263080 + ... + 357545678.

It is an arithmetic number, because the mean of its divisors is an integer number (4471917789600).

Almost surely, 2^{101002120101021} is an apocalyptic number.

It is an amenable number.

101002120101021 is a deficient number, since it is larger than the sum of its proper divisors (42099249166179).

101002120101021 is a wasteful number, since it uses less digits than its factorization.

101002120101021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307665.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 101002120101021 its reverse (120101021200101), we get a palindrome (221103141301122).

The spelling of 101002120101021 in words is "one hundred one trillion, two billion, one hundred twenty million, one hundred one thousand, twenty-one".