22120011111021 has 16 divisors (see below), whose sum is σ = 30446312905536. Its totient is φ = 14276261534976.

The previous prime is 22120011111001. The next prime is 22120011111049. The reversal of 22120011111021 is 12011111002122.

It is a happy number.

It is not a de Polignac number, because 22120011111021 - 2¹³ = 22120011102829 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22120011111001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 758715310 + ... + 758744463.

It is an arithmetic number, because the mean of its divisors is an integer number (1902894556596).

Almost surely, 2^{22120011111021} is an apocalyptic number.

It is an amenable number.

22120011111021 is a deficient number, since it is larger than the sum of its proper divisors (8326301794515).

22120011111021 is a wasteful number, since it uses less digits than its factorization.

22120011111021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1517459932.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 22120011111021 its reverse (12011111002122), we get a palindrome (34131122113143).

The spelling of 22120011111021 in words is "twenty-two trillion, one hundred twenty billion, eleven million, one hundred eleven thousand, twenty-one".