222121502119987 has 2 divisors, whose sum is σ = 222121502119988. Its totient is φ = 222121502119986.

The previous prime is 222121502119973. The next prime is 222121502120009. The reversal of 222121502119987 is 789911205121222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222121502119987 - 2¹⁹ = 222121501595699 is a prime.

It is not a weakly prime, because it can be changed into another prime (222121502119687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111060751059993 + 111060751059994.

It is an arithmetic number, because the mean of its divisors is an integer number (111060751059994).

Almost surely, 2^{222121502119987} is an apocalyptic number.

222121502119987 is a deficient number, since it is larger than the sum of its proper divisors (1).

222121502119987 is an equidigital number, since it uses as much as digits as its factorization.

222121502119987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725760, while the sum is 52.

The spelling of 222121502119987 in words is "two hundred twenty-two trillion, one hundred twenty-one billion, five hundred two million, one hundred nineteen thousand, nine hundred eighty-seven".