2111220001212 has 96 divisors (see below), whose sum is σ = 6000569809920. Its totient is φ = 563963212800.

The previous prime is 2111220001207. The next prime is 2111220001237. The reversal of 2111220001212 is 2121000221112.

It is a junction number, because it is equal to n+sod(n) for n = 2111220001191 and 2111220001200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4679887 + ... + 5111142.

It is an arithmetic number, because the mean of its divisors is an integer number (62505935520).

Almost surely, 2^{2111220001212} is an apocalyptic number.

It is an amenable number.

2111220001212 is an abundant number, since it is smaller than the sum of its proper divisors (3889349808708).

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

2111220001212 is a wasteful number, since it uses less digits than its factorization.

2111220001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9791211 (or 9791209 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2111220001212 its reverse (2121000221112), we get a palindrome (4232220222324).

The spelling of 2111220001212 in words is "two trillion, one hundred eleven billion, two hundred twenty million, one thousand, two hundred twelve".