1020100122021 has 8 divisors (see below), whose sum is σ = 1393307483904. Its totient is φ = 663479754080.

The previous prime is 1020100121987. The next prime is 1020100122047. The reversal of 1020100122021 is 1202210010201.

1020100122021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1020100122021 - 2²⁵ = 1020066567589 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1020100121988 and 1020100122006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020100122121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4146748341 + ... + 4146748586.

It is an arithmetic number, because the mean of its divisors is an integer number (174163435488).

Almost surely, 2^{1020100122021} is an apocalyptic number.

It is an amenable number.

1020100122021 is a deficient number, since it is larger than the sum of its proper divisors (373207361883).

1020100122021 is an equidigital number, since it uses as much as digits as its factorization.

1020100122021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8293496971.

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

Adding to 1020100122021 its reverse (1202210010201), we get a palindrome (2222310132222).

The spelling of 1020100122021 in words is "one trillion, twenty billion, one hundred million, one hundred twenty-two thousand, twenty-one".