2220121002 has 16 divisors (see below), whose sum is σ = 4843900512. Its totient is φ = 672763920.

The previous prime is 2220120997. The next prime is 2220121039. The reversal of 2220121002 is 2001210222.

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, 16819033 + ... + 16819164.

It is an arithmetic number, because the mean of its divisors is an integer number (302743782).

Almost surely, 2^2220121002 is an apocalyptic number.

2220121002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2220121002 is an abundant number, since it is smaller than the sum of its proper divisors (2623779510).

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

2220121002 is a wasteful number, since it uses less digits than its factorization.

2220121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33638213.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 2220121002 is about 47118.1600022751. The cubic root of 2220121002 is about 1304.5444507340.

Adding to 2220121002 its reverse (2001210222), we get a palindrome (4221331224).

The spelling of 2220121002 in words is "two billion, two hundred twenty million, one hundred twenty-one thousand, two".