222061806736 has 80 divisors (see below), whose sum is σ = 536502411648. Its totient is φ = 86502528000.

The previous prime is 222061806719. The next prime is 222061806763. The reversal of 222061806736 is 637608160222.

It is a super-2 number, since 2×222061806736² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 222061806692 and 222061806701.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9318036 + ... + 9341836.

Almost surely, 2^222061806736 is an apocalyptic number.

It is an amenable number.

222061806736 is an abundant number, since it is smaller than the sum of its proper divisors (314440604912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222061806736 is a wasteful number, since it uses less digits than its factorization.

222061806736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31400 (or 31394 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 43.

Adding to 222061806736 its reverse (637608160222), we get a palindrome (859669966958).

The spelling of 222061806736 in words is "two hundred twenty-two billion, sixty-one million, eight hundred six thousand, seven hundred thirty-six".