100102122021021 has 8 divisors (see below), whose sum is σ = 139272517594560. Its totient is φ = 63833237230752.

The previous prime is 100102122021017. The next prime is 100102122021029. The reversal of 100102122021021 is 120120221201001.

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

It is not a de Polignac number, because 100102122021021 - 2² = 100102122021017 is a prime.

It is a super-2 number, since 2×100102122021021² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100102122021029) 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, 725377695736 + ... + 725377695873.

It is an arithmetic number, because the mean of its divisors is an integer number (17409064699320).

Almost surely, 2^{100102122021021} is an apocalyptic number.

It is an amenable number.

100102122021021 is a deficient number, since it is larger than the sum of its proper divisors (39170395573539).

100102122021021 is a wasteful number, since it uses less digits than its factorization.

100102122021021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1450755391635.

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

Adding to 100102122021021 its reverse (120120221201001), we get a palindrome (220222343222022).

The spelling of 100102122021021 in words is "one hundred trillion, one hundred two billion, one hundred twenty-two million, twenty-one thousand, twenty-one".