20021130122030 has 16 divisors (see below), whose sum is σ = 38157918585840. Its totient is φ = 7537366634112.

The previous prime is 20021130122023. The next prime is 20021130122033. The reversal of 20021130122030 is 3022103112002.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20021130122033) 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, 58885676660 + ... + 58885676999.

It is an arithmetic number, because the mean of its divisors is an integer number (2384869911615).

Almost surely, 2^{20021130122030} is an apocalyptic number.

20021130122030 is a deficient number, since it is larger than the sum of its proper divisors (18136788463810).

20021130122030 is a wasteful number, since it uses less digits than its factorization.

20021130122030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117771353683.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20021130122030 its reverse (3022103112002), we get a palindrome (23043233234032).

The spelling of 20021130122030 in words is "twenty trillion, twenty-one billion, one hundred thirty million, one hundred twenty-two thousand, thirty".