202012101001021 has 8 divisors (see below), whose sum is σ = 212701188893600. Its totient is φ = 191328700313520.

The previous prime is 202012101001001. The next prime is 202012101001027. The reversal of 202012101001021 is 120100101210202.

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 202012101001021 - 2¹³ = 202012100992829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202012101000992 and 202012101001010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202012101001027) 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, 1421728350 + ... + 1421870431.

It is an arithmetic number, because the mean of its divisors is an integer number (26587648611700).

Almost surely, 2^{202012101001021} is an apocalyptic number.

It is an amenable number.

202012101001021 is a deficient number, since it is larger than the sum of its proper divisors (10689087892579).

202012101001021 is a wasteful number, since it uses less digits than its factorization.

202012101001021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2843602539.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 202012101001021 its reverse (120100101210202), we get a palindrome (322112202211223).

The spelling of 202012101001021 in words is "two hundred two trillion, twelve billion, one hundred one million, one thousand, twenty-one".