20101211122 has 16 divisors (see below), whose sum is σ = 30891746592. Its totient is φ = 9804034080.

The previous prime is 20101211107. The next prime is 20101211167. The reversal of 20101211122 is 22111210102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 739993 + ... + 766675.

It is an arithmetic number, because the mean of its divisors is an integer number (1930734162).

Almost surely, 2^20101211122 is an apocalyptic number.

20101211122 is a deficient number, since it is larger than the sum of its proper divisors (10790535470).

20101211122 is a wasteful number, since it uses less digits than its factorization.

20101211122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35913.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20101211122 its reverse (22111210102), we get a palindrome (42212421224).

The spelling of 20101211122 in words is "twenty billion, one hundred one million, two hundred eleven thousand, one hundred twenty-two".