2012221200120 has 96 divisors (see below), whose sum is σ = 6204226719600. Its totient is φ = 522089782272.

The previous prime is 2012221200113. The next prime is 2012221200127. The reversal of 2012221200120 is 210021222102.

It is an interprime number because it is at equal distance from previous prime (2012221200113) and next prime (2012221200127).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2012221200120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012221200127) 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, 5960085 + ... + 6288644.

Almost surely, 2^{2012221200120} is an apocalyptic number.

2012221200120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2012221200120 is an abundant number, since it is smaller than the sum of its proper divisors (4192005519480).

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

2012221200120 is a wasteful number, since it uses less digits than its factorization.

2012221200120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12248817 (or 12248776 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 2012221200120 its reverse (210021222102), we get a palindrome (2222242422222).

The spelling of 2012221200120 in words is "two trillion, twelve billion, two hundred twenty-one million, two hundred thousand, one hundred twenty".