21132121001022 has 16 divisors (see below), whose sum is σ = 46960268891280. Its totient is φ = 7044040333656.

The previous prime is 21132121000999. The next prime is 21132121001023. The reversal of 21132121001022 is 22010012123112.

21132121001022 is a `hidden beast` number, since 211 + 321 + 2 + 100 + 10 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 21132121000986 and 21132121001004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21132121001023) 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, 195667786993 + ... + 195667787100.

It is an arithmetic number, because the mean of its divisors is an integer number (2935016805705).

Almost surely, 2^{21132121001022} is an apocalyptic number.

21132121001022 is an abundant number, since it is smaller than the sum of its proper divisors (25828147890258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21132121001022 is a wasteful number, since it uses less digits than its factorization.

21132121001022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391335574104 (or 391335574098 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 21132121001022 its reverse (22010012123112), we get a palindrome (43142133124134).

The spelling of 21132121001022 in words is "twenty-one trillion, one hundred thirty-two billion, one hundred twenty-one million, one thousand, twenty-two".