2122121130220 has 96 divisors (see below), whose sum is σ = 5488058354688. Its totient is φ = 671225571072.

The previous prime is 2122121130187. The next prime is 2122121130287. The reversal of 2122121130220 is 220311212212.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2797497 + ... + 3474223.

It is an arithmetic number, because the mean of its divisors is an integer number (57167274528).

Almost surely, 2^{2122121130220} is an apocalyptic number.

2122121130220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2122121130220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2744029177344).

2122121130220 is an abundant number, since it is smaller than the sum of its proper divisors (3365937224468).

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

2122121130220 is a wasteful number, since it uses less digits than its factorization.

2122121130220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678479 (or 678477 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 2122121130220 its reverse (220311212212), we get a palindrome (2342432342432).

The spelling of 2122121130220 in words is "two trillion, one hundred twenty-two billion, one hundred twenty-one million, one hundred thirty thousand, two hundred twenty".