101002212020 has 12 divisors (see below), whose sum is σ = 212104645284. Its totient is φ = 40400884800.

The previous prime is 101002211963. The next prime is 101002212023. The reversal of 101002212020 is 20212200101.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12267334564 + 88734877456 = 110758^2 + 297884^2 .

It is a junction number, because it is equal to n+sod(n) for n = 101002211992 and 101002212010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101002212023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2525055281 + ... + 2525055320.

It is an arithmetic number, because the mean of its divisors is an integer number (17675387107).

Almost surely, 2^101002212020 is an apocalyptic number.

101002212020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101002212020 is an abundant number, since it is smaller than the sum of its proper divisors (111102433264).

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

101002212020 is a wasteful number, since it uses less digits than its factorization.

101002212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5050110610 (or 5050110608 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 101002212020 its reverse (20212200101), we get a palindrome (121214412121).

The spelling of 101002212020 in words is "one hundred one billion, two million, two hundred twelve thousand, twenty".