21100210312022 has 4 divisors (see below), whose sum is σ = 31650315468036. Its totient is φ = 10550105156010.

The previous prime is 21100210312009. The next prime is 21100210312031. The reversal of 21100210312022 is 22021301200112.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5275052578004 + ... + 5275052578007.

It is an arithmetic number, because the mean of its divisors is an integer number (7912578867009).

Almost surely, 2^{21100210312022} is an apocalyptic number.

21100210312022 is a deficient number, since it is larger than the sum of its proper divisors (10550105156014).

21100210312022 is a wasteful number, since it uses less digits than its factorization.

21100210312022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10550105156013.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 21100210312022 its reverse (22021301200112), we get a palindrome (43121511512134).

The spelling of 21100210312022 in words is "twenty-one trillion, one hundred billion, two hundred ten million, three hundred twelve thousand, twenty-two".