2221022202220 has 48 divisors (see below), whose sum is σ = 4911795624960. Its totient is φ = 841278930624.

The previous prime is 2221022202197. The next prime is 2221022202233. The reversal of 2221022202220 is 222022201222.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 427644 + ... + 2150563.

It is an arithmetic number, because the mean of its divisors is an integer number (102329075520).

Almost surely, 2^{2221022202220} is an apocalyptic number.

2221022202220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221022202220 is an abundant number, since it is smaller than the sum of its proper divisors (2690773422740).

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

2221022202220 is a wasteful number, since it uses less digits than its factorization.

2221022202220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2580502 (or 2580500 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 2221022202220 its reverse (222022201222), we get a palindrome (2443044403442).

It can be divided in two parts, 2221022 and 202220, that added together give a palindrome (2423242).

The spelling of 2221022202220 in words is "two trillion, two hundred twenty-one billion, twenty-two million, two hundred two thousand, two hundred twenty".