28102211220182 has 32 divisors (see below), whose sum is σ = 48691281686400. Its totient is φ = 12022134014080.

The previous prime is 28102211220163. The next prime is 28102211220311.

28102211220182 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×28102211220182² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

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, 22776569 + ... + 23978667.

It is an arithmetic number, because the mean of its divisors is an integer number (1521602552700).

Almost surely, 2^{28102211220182} is an apocalyptic number.

28102211220182 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28102211220182 is a deficient number, since it is larger than the sum of its proper divisors (20589070466218).

28102211220182 is a wasteful number, since it uses less digits than its factorization.

28102211220182 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1264636.

The product of its (nonzero) digits is 4096, while the sum is 32.

The spelling of 28102211220182 in words is "twenty-eight trillion, one hundred two billion, two hundred eleven million, two hundred twenty thousand, one hundred eighty-two".