101002012220 has 24 divisors (see below), whose sum is σ = 223267606800. Its totient is φ = 38274446592.

The previous prime is 101002012211. The next prime is 101002012271. The reversal of 101002012220 is 22210200101.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132897005 + ... + 132897764.

It is an arithmetic number, because the mean of its divisors is an integer number (9302816950).

Almost surely, 2^101002012220 is an apocalyptic number.

101002012220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101002012220 is an abundant number, since it is smaller than the sum of its proper divisors (122265594580).

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

101002012220 is a wasteful number, since it uses less digits than its factorization.

101002012220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265794797 (or 265794795 counting only the distinct ones).

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

Adding to 101002012220 its reverse (22210200101), we get a palindrome (123212212321).

The spelling of 101002012220 in words is "one hundred one billion, two million, twelve thousand, two hundred twenty".