10102120212021 has 8 divisors (see below), whose sum is σ = 14261816769984. Its totient is φ = 6338585231040.

The previous prime is 10102120212011. The next prime is 10102120212053. The reversal of 10102120212021 is 12021202120101.

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

It is not a de Polignac number, because 10102120212021 - 2³⁰ = 10101046470197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10102120212001) 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, 99040394185 + ... + 99040394286.

It is an arithmetic number, because the mean of its divisors is an integer number (1782727096248).

Almost surely, 2^{10102120212021} is an apocalyptic number.

It is an amenable number.

10102120212021 is a deficient number, since it is larger than the sum of its proper divisors (4159696557963).

10102120212021 is a wasteful number, since it uses less digits than its factorization.

10102120212021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198080788491.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 10102120212021 its reverse (12021202120101), we get a palindrome (22123322332122).

The spelling of 10102120212021 in words is "ten trillion, one hundred two billion, one hundred twenty million, two hundred twelve thousand, twenty-one".