22049201309220 has 72 divisors (see below), whose sum is σ = 67081042110264. Its totient is φ = 5862339560448.

The previous prime is 22049201309209. The next prime is 22049201309249. The reversal of 22049201309220 is 2290310294022.

It is a happy number.

22049201309220 is a `hidden beast` number, since 220 + 4 + 9 + 201 + 3 + 0 + 9 + 220 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 207804692736 + 21841396616484 = 455856^2 + 4673478^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 181683499 + ... + 181804818.

Almost surely, 2^{22049201309220} is an apocalyptic number.

22049201309220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22049201309220 is an abundant number, since it is smaller than the sum of its proper divisors (45031840801044).

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

22049201309220 is a wasteful number, since it uses less digits than its factorization.

22049201309220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363488669 (or 363488664 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The spelling of 22049201309220 in words is "twenty-two trillion, forty-nine billion, two hundred one million, three hundred nine thousand, two hundred twenty".