22061999232 has 384 divisors, whose sum is σ = 78562848000. Its totient is φ = 5786836992.

The previous prime is 22061999221. The next prime is 22061999243. The reversal of 22061999232 is 23299916022.

22061999232 is a `hidden beast` number, since 2 + 2 + 0 + 619 + 9 + 9 + 23 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (22061999221) and next prime (22061999243).

It is a tau number, because it is divible by the number of its divisors (384).

It is a super-2 number, since 2×22061999232² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24006069 + ... + 24006987.

It is an arithmetic number, because the mean of its divisors is an integer number (204590750).

Almost surely, 2^22061999232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22061999232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39281424000).

22061999232 is an abundant number, since it is smaller than the sum of its proper divisors (56500848768).

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

22061999232 is a wasteful number, since it uses less digits than its factorization.

22061999232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1188 (or 1173 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The spelling of 22061999232 in words is "twenty-two billion, sixty-one million, nine hundred ninety-nine thousand, two hundred thirty-two".