2220121012012 has 6 divisors (see below), whose sum is σ = 3885211771028. Its totient is φ = 1110060506004.

The previous prime is 2220121012007. The next prime is 2220121012013. The reversal of 2220121012012 is 2102101210222.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2220121012013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277515126498 + ... + 277515126505.

Almost surely, 2^{2220121012012} is an apocalyptic number.

It is an amenable number.

2220121012012 is a deficient number, since it is larger than the sum of its proper divisors (1665090759016).

2220121012012 is a wasteful number, since it uses less digits than its factorization.

2220121012012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555030253007 (or 555030253005 counting only the distinct ones).

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

Adding to 2220121012012 its reverse (2102101210222), we get a palindrome (4322222222234).

The spelling of 2220121012012 in words is "two trillion, two hundred twenty billion, one hundred twenty-one million, twelve thousand, twelve".