20120021223309 has 24 divisors (see below), whose sum is σ = 33214431711552. Its totient is φ = 11497006684800.

The previous prime is 20120021223307. The next prime is 20120021223311. The reversal of 20120021223309 is 90332212002102.

20120021223309 is a `hidden beast` number, since 2 + 0 + 1 + 200 + 2 + 122 + 330 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (20120021223307) and next prime (20120021223311).

It is not a de Polignac number, because 20120021223309 - 2¹ = 20120021223307 is a prime.

It is a super-3 number, since 3×20120021223309³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20120021223307) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2959509 + ... + 6999909.

It is an arithmetic number, because the mean of its divisors is an integer number (1383934654648).

Almost surely, 2^{20120021223309} is an apocalyptic number.

It is an amenable number.

20120021223309 is a deficient number, since it is larger than the sum of its proper divisors (13094410488243).

20120021223309 is a wasteful number, since it uses less digits than its factorization.

20120021223309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4119457 (or 4119454 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The spelling of 20120021223309 in words is "twenty trillion, one hundred twenty billion, twenty-one million, two hundred twenty-three thousand, three hundred nine".