2221121000202 has 32 divisors (see below), whose sum is σ = 4786353636288. Its totient is φ = 683078887296.

The previous prime is 2221121000159. The next prime is 2221121000227. The reversal of 2221121000202 is 2020001211222.

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, 6988528 + ... + 7299435.

It is an arithmetic number, because the mean of its divisors is an integer number (149573551134).

Almost surely, 2^{2221121000202} is an apocalyptic number.

2221121000202 is an abundant number, since it is smaller than the sum of its proper divisors (2565232636086).

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

2221121000202 is a wasteful number, since it uses less digits than its factorization.

2221121000202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14289974.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 2221121000202 its reverse (2020001211222), we get a palindrome (4241122211424).

The spelling of 2221121000202 in words is "two trillion, two hundred twenty-one billion, one hundred twenty-one million, two hundred two", and thus it is an aban number.