12020021122 has 32 divisors (see below), whose sum is σ = 20106963072. Its totient is φ = 5359943424.

The previous prime is 12020021119. The next prime is 12020021131. The reversal of 12020021122 is 22112002021.

It is a happy number.

It is a super-2 number, since 2×12020021122² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11848 + ... + 155500.

It is an arithmetic number, because the mean of its divisors is an integer number (628342596).

Almost surely, 2^12020021122 is an apocalyptic number.

12020021122 is a deficient number, since it is larger than the sum of its proper divisors (8086941950).

12020021122 is a wasteful number, since it uses less digits than its factorization.

12020021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143802.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12020021122 its reverse (22112002021), we get a palindrome (34132023143).

The spelling of 12020021122 in words is "twelve billion, twenty million, twenty-one thousand, one hundred twenty-two".