101210002021 has 8 divisors (see below), whose sum is σ = 102966020864. Its totient is φ = 99457107120.

The previous prime is 101210001979. The next prime is 101210002031. The reversal of 101210002021 is 120200012101.

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 101210002021 - 2²³ = 101201613413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101210001989 and 101210002007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101210002031) 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, 715581 + ... + 845266.

It is an arithmetic number, because the mean of its divisors is an integer number (12870752608).

Almost surely, 2^101210002021 is an apocalyptic number.

It is an amenable number.

101210002021 is a deficient number, since it is larger than the sum of its proper divisors (1756018843).

101210002021 is a wasteful number, since it uses less digits than its factorization.

101210002021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1561971.

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

Adding to 101210002021 its reverse (120200012101), we get a palindrome (221410014122).

The spelling of 101210002021 in words is "one hundred one billion, two hundred ten million, two thousand, twenty-one".