20122121022 has 16 divisors (see below), whose sum is σ = 40299154320. Its totient is φ = 6698221632.

The previous prime is 20122121017. The next prime is 20122121027. The reversal of 20122121022 is 22012122102.

It is an interprime number because it is at equal distance from previous prime (20122121017) and next prime (20122121027).

It is a junction number, because it is equal to n+sod(n) for n = 20122120992 and 20122121010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122121027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2283247 + ... + 2292042.

It is an arithmetic number, because the mean of its divisors is an integer number (2518697145).

Almost surely, 2^20122121022 is an apocalyptic number.

20122121022 is an abundant number, since it is smaller than the sum of its proper divisors (20177033298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20122121022 is a wasteful number, since it uses less digits than its factorization.

20122121022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4576027.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20122121022 its reverse (22012122102), we get a palindrome (42134243124).

The spelling of 20122121022 in words is "twenty billion, one hundred twenty-two million, one hundred twenty-one thousand, twenty-two".