102100222101021 has 8 divisors (see below), whose sum is σ = 136174894600800. Its totient is φ = 68046182167632.

The previous prime is 102100222101011. The next prime is 102100222101037. The reversal of 102100222101021 is 120101222001201.

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

It is not a de Polignac number, because 102100222101021 - 2⁶ = 102100222100957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102100222101011) 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, 5158130050 + ... + 5158149843.

It is an arithmetic number, because the mean of its divisors is an integer number (17021861825100).

Almost surely, 2^{102100222101021} is an apocalyptic number.

It is an amenable number.

102100222101021 is a deficient number, since it is larger than the sum of its proper divisors (34074672499779).

102100222101021 is a wasteful number, since it uses less digits than its factorization.

102100222101021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10316283195.

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

Adding to 102100222101021 its reverse (120101222001201), we get a palindrome (222201444102222).

The spelling of 102100222101021 in words is "one hundred two trillion, one hundred billion, two hundred twenty-two million, one hundred one thousand, twenty-one".