2221661102 has 16 divisors (see below), whose sum is σ = 3403901232. Its totient is φ = 1087132800.

The previous prime is 2221661063. The next prime is 2221661111. The reversal of 2221661102 is 2011661222.

It is a happy number.

It is a super-3 number, since 3×2221661102³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

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, 16373 + ... + 68639.

It is an arithmetic number, because the mean of its divisors is an integer number (212743827).

Almost surely, 2^2221661102 is an apocalyptic number.

2221661102 is a deficient number, since it is larger than the sum of its proper divisors (1182240130).

2221661102 is a wasteful number, since it uses less digits than its factorization.

2221661102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52723.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 2221661102 is about 47134.5001246433. The cubic root of 2221661102 is about 1304.8460355736.

The spelling of 2221661102 in words is "two billion, two hundred twenty-one million, six hundred sixty-one thousand, one hundred two".