1220010100212 has 24 divisors (see below), whose sum is σ = 2846710050912. Its totient is φ = 406667202400.

The previous prime is 1220010100189. The next prime is 1220010100219. The reversal of 1220010100212 is 2120010100221.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220010100219) 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, 2150887 + ... + 2658257.

It is an arithmetic number, because the mean of its divisors is an integer number (118612918788).

Almost surely, 2^{1220010100212} is an apocalyptic number.

1220010100212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1220010100212 is an abundant number, since it is smaller than the sum of its proper divisors (1626699950700).

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

1220010100212 is a wasteful number, since it uses less digits than its factorization.

1220010100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707759 (or 707757 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1220010100212 its reverse (2120010100221), we get a palindrome (3340020200433).

Subtracting 1220010100212 from its reverse (2120010100221), we obtain a palindrome (900000000009).

The spelling of 1220010100212 in words is "one trillion, two hundred twenty billion, ten million, one hundred thousand, two hundred twelve".