210220111021220 has 48 divisors (see below), whose sum is σ = 441791240899008. Its totient is φ = 84025392923520.

The previous prime is 210220111021201. The next prime is 210220111021229. The reversal of 210220111021220 is 22120111022012.

210220111021220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×210220111021220² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (210220111021229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202868939 + ... + 203902541.

It is an arithmetic number, because the mean of its divisors is an integer number (9203984185396).

Almost surely, 2^{210220111021220} is an apocalyptic number.

210220111021220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210220111021220 is an abundant number, since it is smaller than the sum of its proper divisors (231571129877788).

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

210220111021220 is a wasteful number, since it uses less digits than its factorization.

210220111021220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1041180 (or 1041178 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 210220111021220 its reverse (22120111022012), we get a palindrome (232340222043232).

The spelling of 210220111021220 in words is "two hundred ten trillion, two hundred twenty billion, one hundred eleven million, twenty-one thousand, two hundred twenty".