101000221012020 has 96 divisors (see below), whose sum is σ = 308513752477056. Its totient is φ = 24484585676800.

The previous prime is 101000221012013. The next prime is 101000221012039. The reversal of 101000221012020 is 20210122000101.

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

It is a junction number, because it is equal to n+sod(n) for n = 101000221011987 and 101000221012005.

It is a congruent number.

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, 52301092 + ... + 54197828.

It is an arithmetic number, because the mean of its divisors is an integer number (3213684921636).

Almost surely, 2^{101000221012020} is an apocalyptic number.

101000221012020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101000221012020 is an abundant number, since it is smaller than the sum of its proper divisors (207513531465036).

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

101000221012020 is a wasteful number, since it uses less digits than its factorization.

101000221012020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1977441 (or 1977439 counting only the distinct ones).

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

Adding to 101000221012020 its reverse (20210122000101), we get a palindrome (121210343012121).

It can be divided in two parts, 1010002 and 21012020, that added together give a palindrome (22022022).

The spelling of 101000221012020 in words is "one hundred one trillion, two hundred twenty-one million, twelve thousand, twenty".