100402248215721 has 32 divisors (see below), whose sum is σ = 143936314122240. Its totient is φ = 62052976329984.

The previous prime is 100402248215641. The next prime is 100402248215743. The reversal of 100402248215721 is 127512842204001.

It is not a de Polignac number, because 100402248215721 - 2¹⁸ = 100402247953577 is a prime.

It is a super-2 number, since 2×100402248215721² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 100402248215721.

It is not an unprimeable number, because it can be changed into a prime (100402248265721) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14070096 + ... + 19969278.

It is an arithmetic number, because the mean of its divisors is an integer number (4498009816320).

Almost surely, 2^{100402248215721} is an apocalyptic number.

It is an amenable number.

100402248215721 is a deficient number, since it is larger than the sum of its proper divisors (43534065906519).

100402248215721 is a wasteful number, since it uses less digits than its factorization.

100402248215721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5905605.

The product of its (nonzero) digits is 71680, while the sum is 39.

The spelling of 100402248215721 in words is "one hundred trillion, four hundred two billion, two hundred forty-eight million, two hundred fifteen thousand, seven hundred twenty-one".