2000121121220 has 96 divisors (see below), whose sum is σ = 4238849494656. Its totient is φ = 792739584000.

The previous prime is 2000121121127. The next prime is 2000121121231. The reversal of 2000121121220 is 221211210002.

It is a junction number, because it is equal to n+sod(n) for n = 2000121121195 and 2000121121204.

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, 1348698599 + ... + 1348700081.

It is an arithmetic number, because the mean of its divisors is an integer number (44154682236).

Almost surely, 2^{2000121121220} is an apocalyptic number.

2000121121220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2000121121220 is an abundant number, since it is smaller than the sum of its proper divisors (2238728373436).

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

2000121121220 is a wasteful number, since it uses less digits than its factorization.

2000121121220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2901 (or 2899 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2000121121220 its reverse (221211210002), we get a palindrome (2221332331222).

The spelling of 2000121121220 in words is "two trillion, one hundred twenty-one million, one hundred twenty-one thousand, two hundred twenty".