101002201121020 has 24 divisors (see below), whose sum is σ = 221326562457504. Its totient is φ = 38644320428736.

The previous prime is 101002201121011. The next prime is 101002201121027. The reversal of 101002201121020 is 20121102200101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101002201121027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109785000759 + ... + 109785001678.

It is an arithmetic number, because the mean of its divisors is an integer number (9221940102396).

Almost surely, 2^{101002201121020} is an apocalyptic number.

101002201121020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101002201121020 is an abundant number, since it is smaller than the sum of its proper divisors (120324361336484).

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

101002201121020 is a wasteful number, since it uses less digits than its factorization.

101002201121020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219570002469 (or 219570002467 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 101002201121020 its reverse (20121102200101), we get a palindrome (121123303321121).

The spelling of 101002201121020 in words is "one hundred one trillion, two billion, two hundred one million, one hundred twenty-one thousand, twenty".