210222201220 has 24 divisors (see below), whose sum is σ = 464701708800. Its totient is φ = 79663149792.

The previous prime is 210222201197. The next prime is 210222201247. The reversal of 210222201220 is 22102222012.

It is a junction number, because it is equal to n+sod(n) for n = 210222201194 and 210222201203.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276607780 + ... + 276608539.

It is an arithmetic number, because the mean of its divisors is an integer number (19362571200).

Almost surely, 2^210222201220 is an apocalyptic number.

210222201220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210222201220 is an abundant number, since it is smaller than the sum of its proper divisors (254479507580).

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

210222201220 is a wasteful number, since it uses less digits than its factorization.

210222201220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553216347 (or 553216345 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 210222201220 its reverse (22102222012), we get a palindrome (232324423232).

The spelling of 210222201220 in words is "two hundred ten billion, two hundred twenty-two million, two hundred one thousand, two hundred twenty".