1210011420220 has 48 divisors (see below), whose sum is σ = 2544821108928. Its totient is φ = 483281809920.

The previous prime is 1210011420097. The next prime is 1210011420271. The reversal of 1210011420220 is 220241100121.

It is a junction number, because it is equal to n+sod(n) for n = 1210011420194 and 1210011420203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42602344 + ... + 42630736.

It is an arithmetic number, because the mean of its divisors is an integer number (53017106436).

Almost surely, 2^{1210011420220} is an apocalyptic number.

1210011420220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210011420220 is an abundant number, since it is smaller than the sum of its proper divisors (1334809688708).

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

1210011420220 is a wasteful number, since it uses less digits than its factorization.

1210011420220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31510 (or 31508 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1210011420220 its reverse (220241100121), we get a palindrome (1430252520341).

The spelling of 1210011420220 in words is "one trillion, two hundred ten billion, eleven million, four hundred twenty thousand, two hundred twenty".