2220220121000 has 64 divisors (see below), whose sum is σ = 5937502970880. Its totient is φ = 761218324800.

The previous prime is 2220220120949. The next prime is 2220220121003. The reversal of 2220220121000 is 1210220222.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (2220220121003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158580152 + ... + 158594151.

It is an arithmetic number, because the mean of its divisors is an integer number (92773483920).

Almost surely, 2^{2220220121000} is an apocalyptic number.

2220220121000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220220121000 is an abundant number, since it is smaller than the sum of its proper divisors (3717282849880).

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

2220220121000 is a wasteful number, since it uses less digits than its factorization.

2220220121000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317174331 (or 317174317 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 2220220121000 its reverse (1210220222), we get a palindrome (2221430341222).

The spelling of 2220220121000 in words is "two trillion, two hundred twenty billion, two hundred twenty million, one hundred twenty-one thousand".