100001210022021 has 64 divisors (see below), whose sum is σ = 170749644742656. Its totient is φ = 50556780331200.

The previous prime is 100001210021971. The next prime is 100001210022023. The reversal of 100001210022021 is 120220012100001.

It is not a de Polignac number, because 100001210022021 - 2¹¹ = 100001210019973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100001210021988 and 100001210022006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100001210022023) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 37638775 + ... + 40207956.

It is an arithmetic number, because the mean of its divisors is an integer number (2667963199104).

Almost surely, 2^{100001210022021} is an apocalyptic number.

100001210022021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

100001210022021 is a deficient number, since it is larger than the sum of its proper divisors (70748434720635).

100001210022021 is a wasteful number, since it uses less digits than its factorization.

100001210022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77846902.

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

Adding to 100001210022021 its reverse (120220012100001), we get a palindrome (220221222122022).

The spelling of 100001210022021 in words is "one hundred trillion, one billion, two hundred ten million, twenty-two thousand, twenty-one".