21000101210022 has 32 divisors (see below), whose sum is σ = 48229897518720. Its totient is φ = 6028737189120.

The previous prime is 21000101209963. The next prime is 21000101210029. The reversal of 21000101210022 is 22001210100012.

It is a super-3 number, since 3×21000101210022³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21000101210029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8373244843 + ... + 8373247350.

It is an arithmetic number, because the mean of its divisors is an integer number (1507184297460).

Almost surely, 2^{21000101210022} is an apocalyptic number.

21000101210022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21000101210022 is an abundant number, since it is smaller than the sum of its proper divisors (27229796308698).

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

21000101210022 is a wasteful number, since it uses less digits than its factorization.

21000101210022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16746492228.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 21000101210022 its reverse (22001210100012), we get a palindrome (43001311310034).

The spelling of 21000101210022 in words is "twenty-one trillion, one hundred one million, two hundred ten thousand, twenty-two".