2220121202012 has 24 divisors (see below), whose sum is σ = 4442459312256. Its totient is φ = 951005463408.

The previous prime is 2220121201927. The next prime is 2220121202017. The reversal of 2220121202012 is 2102021210222.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220121202017) 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, 19736738 + ... + 19848905.

It is an arithmetic number, because the mean of its divisors is an integer number (185102471344).

Almost surely, 2^{2220121202012} is an apocalyptic number.

It is an amenable number.

2220121202012 is an abundant number, since it is smaller than the sum of its proper divisors (2222338110244).

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

2220121202012 is a wasteful number, since it uses less digits than its factorization.

2220121202012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39587657 (or 39587655 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2220121202012 its reverse (2102021210222), we get a palindrome (4322142412234).

The spelling of 2220121202012 in words is "two trillion, two hundred twenty billion, one hundred twenty-one million, two hundred two thousand, twelve".