2002220121222 has 32 divisors (see below), whose sum is σ = 4524791241600. Its totient is φ = 656094727944.

The previous prime is 2002220121221. The next prime is 2002220121259. The reversal of 2002220121222 is 2221210222002.

2002220121222 is a `hidden beast` number, since 200 + 2 + 220 + 1 + 21 + 222 = 666.

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 = 2002220121195 and 2002220121204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002220121221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 314218428 + ... + 314224799.

It is an arithmetic number, because the mean of its divisors is an integer number (141399726300).

Almost surely, 2^{2002220121222} is an apocalyptic number.

2002220121222 is an abundant number, since it is smaller than the sum of its proper divisors (2522571120378).

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

2002220121222 is a wasteful number, since it uses less digits than its factorization.

2002220121222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628443297 (or 628443291 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 2002220121222 its reverse (2221210222002), we get a palindrome (4223430343224).

The spelling of 2002220121222 in words is "two trillion, two billion, two hundred twenty million, one hundred twenty-one thousand, two hundred twenty-two".