10100121201021 has 16 divisors (see below), whose sum is σ = 13557804552000. Its totient is φ = 6687929958528.

The previous prime is 10100121201019. The next prime is 10100121201041. The reversal of 10100121201021 is 12010212100101.

It is not a de Polignac number, because 10100121201021 - 2¹ = 10100121201019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10100121200988 and 10100121201006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10100121201041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9948465 + ... + 10916601.

It is an arithmetic number, because the mean of its divisors is an integer number (847362784500).

Almost surely, 2^{10100121201021} is an apocalyptic number.

It is an amenable number.

10100121201021 is a deficient number, since it is larger than the sum of its proper divisors (3457683350979).

10100121201021 is a wasteful number, since it uses less digits than its factorization.

10100121201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991628.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 10100121201021 its reverse (12010212100101), we get a palindrome (22110333301122).

The spelling of 10100121201021 in words is "ten trillion, one hundred billion, one hundred twenty-one million, two hundred one thousand, twenty-one".