22012121020111 has 8 divisors (see below), whose sum is σ = 23171872759920. Its totient is φ = 20852491185792.

The previous prime is 22012121020061. The next prime is 22012121020117. The reversal of 22012121020111 is 11102012121022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22012121020111 - 2⁷ = 22012121019983 is a prime.

It is a super-3 number, since 3×22012121020111³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22012121020117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30105610 + ... + 30828103.

It is an arithmetic number, because the mean of its divisors is an integer number (2896484094990).

Almost surely, 2^{22012121020111} is an apocalyptic number.

22012121020111 is a deficient number, since it is larger than the sum of its proper divisors (1159751739809).

22012121020111 is a wasteful number, since it uses less digits than its factorization.

22012121020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60952745.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 22012121020111 its reverse (11102012121022), we get a palindrome (33114133141133).

The spelling of 22012121020111 in words is "twenty-two trillion, twelve billion, one hundred twenty-one million, twenty thousand, one hundred eleven".