222061225513 has 4 divisors (see below), whose sum is σ = 222065016580. Its totient is φ = 222057434448.

The previous prime is 222061225481. The next prime is 222061225517. The reversal of 222061225513 is 315522160222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 315522160222 = 2 ⋅157761080111.

It can be written as a sum of positive squares in 2 ways, for example, as 45415019664 + 176646205849 = 213108^2 + 420293^2 .

It is a cyclic number.

It is not a de Polignac number, because 222061225513 - 2⁵ = 222061225481 is a prime.

It is a super-2 number, since 2×222061225513² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222061225517) 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, 1806270 + ... + 1925287.

It is an arithmetic number, because the mean of its divisors is an integer number (55516254145).

Almost surely, 2^222061225513 is an apocalyptic number.

It is an amenable number.

222061225513 is a deficient number, since it is larger than the sum of its proper divisors (3791067).

222061225513 is an equidigital number, since it uses as much as digits as its factorization.

222061225513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3791066.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 222061225513 its reverse (315522160222), we get a palindrome (537583385735).

The spelling of 222061225513 in words is "two hundred twenty-two billion, sixty-one million, two hundred twenty-five thousand, five hundred thirteen".