222215500051 has 4 divisors (see below), whose sum is σ = 235287000072. Its totient is φ = 209144000032.

The previous prime is 222215500033. The next prime is 222215500121. The reversal of 222215500051 is 150005512222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 150005512222 = 2 ⋅75002756111.

It is a cyclic number.

It is not a de Polignac number, because 222215500051 - 2¹³ = 222215491859 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222215499989 and 222215500025.

It is not an unprimeable number, because it can be changed into a prime (222215501051) 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, 6535749985 + ... + 6535750018.

It is an arithmetic number, because the mean of its divisors is an integer number (58821750018).

Almost surely, 2^222215500051 is an apocalyptic number.

222215500051 is a deficient number, since it is larger than the sum of its proper divisors (13071500021).

222215500051 is a wasteful number, since it uses less digits than its factorization.

222215500051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13071500020.

The product of its (nonzero) digits is 2000, while the sum is 25.

The spelling of 222215500051 in words is "two hundred twenty-two billion, two hundred fifteen million, five hundred thousand, fifty-one".