2221253091516 has 24 divisors (see below), whose sum is σ = 5182968183120. Its totient is φ = 740411368192.

The previous prime is 2221253091451. The next prime is 2221253091599. The reversal of 2221253091516 is 6151903521222.

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, 799090 + ... + 2254118.

It is an arithmetic number, because the mean of its divisors is an integer number (215957007630).

Almost surely, 2^{2221253091516} is an apocalyptic number.

It is an amenable number.

2221253091516 is an abundant number, since it is smaller than the sum of its proper divisors (2961715091604).

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

2221253091516 is a wasteful number, since it uses less digits than its factorization.

2221253091516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1582253 (or 1582251 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 39.

The spelling of 2221253091516 in words is "two trillion, two hundred twenty-one billion, two hundred fifty-three million, ninety-one thousand, five hundred sixteen".