2202112211220 has 36 divisors (see below), whose sum is σ = 6679740374580. Its totient is φ = 587229922944.

The previous prime is 2202112211183. The next prime is 2202112211269. The reversal of 2202112211220 is 221122112022.

It is a happy number.

2202112211220 is a `hidden beast` number, since 2 + 20 + 211 + 2 + 211 + 220 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 428831141904 + 1773281069316 = 654852^2 + 1331646^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 2202112211193 and 2202112211202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6116978185 + ... + 6116978544.

Almost surely, 2^{2202112211220} is an apocalyptic number.

2202112211220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2202112211220 is an abundant number, since it is smaller than the sum of its proper divisors (4477628163360).

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

2202112211220 is a wasteful number, since it uses less digits than its factorization.

2202112211220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12233956744 (or 12233956739 counting only the distinct ones).

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

Adding to 2202112211220 its reverse (221122112022), we get a palindrome (2423234323242).

The spelling of 2202112211220 in words is "two trillion, two hundred two billion, one hundred twelve million, two hundred eleven thousand, two hundred twenty".