2122021011 has 32 divisors (see below), whose sum is σ = 3128232960. Its totient is φ = 1268825600.

The previous prime is 2122020991. The next prime is 2122021043. The reversal of 2122021011 is 1101202212.

It is a cyclic number.

It is not a de Polignac number, because 2122021011 - 2⁷ = 2122020883 is a prime.

It is a super-2 number, since 2×2122021011² = 9005946342250924242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2122021411) 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, 890041 + ... + 892421.

It is an arithmetic number, because the mean of its divisors is an integer number (97757280).

Almost surely, 2^2122021011 is an apocalyptic number.

2122021011 is a deficient number, since it is larger than the sum of its proper divisors (1006211949).

2122021011 is a wasteful number, since it uses less digits than its factorization.

2122021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2747.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 2122021011 is about 46065.3992818905. The cubic root of 2122021011 is about 1285.0397442122.

Adding to 2122021011 its reverse (1101202212), we get a palindrome (3223223223).

The spelling of 2122021011 in words is "two billion, one hundred twenty-two million, twenty-one thousand, eleven".