202000010101021 has 16 divisors (see below), whose sum is σ = 230144454033408. Its totient is φ = 175499574118000.

The previous prime is 202000010101009. The next prime is 202000010101031. The reversal of 202000010101021 is 120101010000202.

It is not a de Polignac number, because 202000010101021 - 2²³ = 202000001712413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202000010100989 and 202000010101007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202000010101031) 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, 346545901 + ... + 347128306.

It is an arithmetic number, because the mean of its divisors is an integer number (14384028377088).

Almost surely, 2^{202000010101021} is an apocalyptic number.

It is an amenable number.

202000010101021 is a deficient number, since it is larger than the sum of its proper divisors (28144443932387).

202000010101021 is a wasteful number, since it uses less digits than its factorization.

202000010101021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693675392.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 202000010101021 its reverse (120101010000202), we get a palindrome (322101020101223).

The spelling of 202000010101021 in words is "two hundred two trillion, ten million, one hundred one thousand, twenty-one".