2120222101212 has 72 divisors (see below), whose sum is σ = 5381115339600. Its totient is φ = 703887383808.

The previous prime is 2120222101211. The next prime is 2120222101223. The reversal of 2120222101212 is 2121012220212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120222101211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14171614 + ... + 14320442.

It is an arithmetic number, because the mean of its divisors is an integer number (74737713050).

Almost surely, 2^{2120222101212} is an apocalyptic number.

It is an amenable number.

2120222101212 is an abundant number, since it is smaller than the sum of its proper divisors (3260893238388).

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

2120222101212 is a wasteful number, since it uses less digits than its factorization.

2120222101212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150435 (or 150430 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2120222101212 its reverse (2121012220212), we get a palindrome (4241234321424).

The spelling of 2120222101212 in words is "two trillion, one hundred twenty billion, two hundred twenty-two million, one hundred one thousand, two hundred twelve".