22012001011 has 32 divisors (see below), whose sum is σ = 31110105600. Its totient is φ = 14999489280.

The previous prime is 22012000999. The next prime is 22012001021. The reversal of 22012001011 is 11010021022.

It is a cyclic number.

It is not a de Polignac number, because 22012001011 - 2⁷ = 22012000883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22012001021) 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, 559666 + ... + 597703.

It is an arithmetic number, because the mean of its divisors is an integer number (972190800).

Almost surely, 2^22012001011 is an apocalyptic number.

22012001011 is a deficient number, since it is larger than the sum of its proper divisors (9098104589).

22012001011 is a wasteful number, since it uses less digits than its factorization.

22012001011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157419.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 22012001011 its reverse (11010021022), we get a palindrome (33022022033).

The spelling of 22012001011 in words is "twenty-two billion, twelve million, one thousand, eleven".