1220100010212 has 48 divisors (see below), whose sum is σ = 3014909976960. Its totient is φ = 382707236352.

The previous prime is 1220100010211. The next prime is 1220100010253. The reversal of 1220100010212 is 2120100010221.

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

It is not an unprimeable number, because it can be changed into a prime (1220100010211) 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, 595489 + ... + 1671767.

It is an arithmetic number, because the mean of its divisors is an integer number (62810624520).

Almost surely, 2^{1220100010212} is an apocalyptic number.

1220100010212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1220100010212 is an abundant number, since it is smaller than the sum of its proper divisors (1794809966748).

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

1220100010212 is a wasteful number, since it uses less digits than its factorization.

1220100010212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081860 (or 1081858 counting only the distinct ones).

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

Adding to 1220100010212 its reverse (2120100010221), we get a palindrome (3340200020433).

Subtracting 1220100010212 from its reverse (2120100010221), we obtain a palindrome (900000000009).

The spelling of 1220100010212 in words is "one trillion, two hundred twenty billion, one hundred million, ten thousand, two hundred twelve".