20210110210220 has 72 divisors (see below), whose sum is σ = 49375515137760. Its totient is φ = 6928464426240.

The previous prime is 20210110210217. The next prime is 20210110210309. The reversal of 20210110210220 is 2201201101202.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 20210110210195 and 20210110210204.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8463680 + ... + 10585560.

It is an arithmetic number, because the mean of its divisors is an integer number (685771043580).

Almost surely, 2^{20210110210220} is an apocalyptic number.

20210110210220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20210110210220 is an abundant number, since it is smaller than the sum of its proper divisors (29165404927540).

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

20210110210220 is a wasteful number, since it uses less digits than its factorization.

20210110210220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2131623 (or 2131614 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20210110210220 its reverse (2201201101202), we get a palindrome (22411311311422).

The spelling of 20210110210220 in words is "twenty trillion, two hundred ten billion, one hundred ten million, two hundred ten thousand, two hundred twenty".