202211210212220 has 48 divisors (see below), whose sum is σ = 467834108718816. Its totient is φ = 72803316000000.

The previous prime is 202211210212009. The next prime is 202211210212223. The reversal of 202211210212220 is 22212012112202.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 202211210212192 and 202211210212201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202211210212223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4550185031 + ... + 4550229470.

It is an arithmetic number, because the mean of its divisors is an integer number (9746543931642).

Almost surely, 2^{202211210212220} is an apocalyptic number.

202211210212220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202211210212220 is an abundant number, since it is smaller than the sum of its proper divisors (265622898506596).

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

202211210212220 is a wasteful number, since it uses less digits than its factorization.

202211210212220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9100414622 (or 9100414620 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 202211210212220 its reverse (22212012112202), we get a palindrome (224423222324422).

The spelling of 202211210212220 in words is "two hundred two trillion, two hundred eleven billion, two hundred ten million, two hundred twelve thousand, two hundred twenty".