22012110021111 has 32 divisors (see below), whose sum is σ = 34421000302080. Its totient is φ = 12252236840064.

The previous prime is 22012110021091. The next prime is 22012110021119. The reversal of 22012110021111 is 11112001121022.

It is a happy number.

It is not a de Polignac number, because 22012110021111 - 2¹¹ = 22012110019063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22012110021119) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70986580 + ... + 71295993.

It is an arithmetic number, because the mean of its divisors is an integer number (1075656259440).

Almost surely, 2^{22012110021111} is an apocalyptic number.

22012110021111 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

22012110021111 is a deficient number, since it is larger than the sum of its proper divisors (12408890280969).

22012110021111 is a wasteful number, since it uses less digits than its factorization.

22012110021111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142282775.

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

Adding to 22012110021111 its reverse (11112001121022), we get a palindrome (33124111142133).

The spelling of 22012110021111 in words is "twenty-two trillion, twelve billion, one hundred ten million, twenty-one thousand, one hundred eleven".