102222455257551 has 4 divisors (see below), whose sum is σ = 136296607010072. Its totient is φ = 68148303505032.

The previous prime is 102222455257537. The next prime is 102222455257631. The reversal of 102222455257551 is 155752554222201.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 102222455257551 - 2¹⁷ = 102222455126479 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102222455257551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102222455258551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17037075876256 + ... + 17037075876261.

It is an arithmetic number, because the mean of its divisors is an integer number (34074151752518).

Almost surely, 2^{102222455257551} is an apocalyptic number.

102222455257551 is a deficient number, since it is larger than the sum of its proper divisors (34074151752521).

102222455257551 is an equidigital number, since it uses as much as digits as its factorization.

102222455257551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34074151752520.

The product of its (nonzero) digits is 2800000, while the sum is 48.

The spelling of 102222455257551 in words is "one hundred two trillion, two hundred twenty-two billion, four hundred fifty-five million, two hundred fifty-seven thousand, five hundred fifty-one".