202222011212100 has 216 divisors, whose sum is σ = 691906529627040. Its totient is φ = 48993045696000.

The previous prime is 202222011212099. The next prime is 202222011212101. The reversal of 202222011212100 is 1212110222202.

It is a happy number.

202222011212100 is a `hidden beast` number, since 20 + 222 + 201 + 1 + 212 + 10 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (202222011212099) and next prime (202222011212101).

It is a super-2 number, since 2×202222011212100² (a number of 29 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (202222011212101) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 9581535 + ... + 22276665.

Almost surely, 2^{202222011212100} is an apocalyptic number.

202222011212100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202222011212100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (345953264813520).

202222011212100 is an abundant number, since it is smaller than the sum of its proper divisors (489684518414940).

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

202222011212100 is a wasteful number, since it uses less digits than its factorization.

202222011212100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12696771 (or 12696761 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 202222011212100 its reverse (1212110222202), we get a palindrome (203434121434302).

The spelling of 202222011212100 in words is "two hundred two trillion, two hundred twenty-two billion, eleven million, two hundred twelve thousand, one hundred".