2120101122220 has 48 divisors (see below), whose sum is σ = 4506309612000. Its totient is φ = 837773619200.

The previous prime is 2120101122193. The next prime is 2120101122239. The reversal of 2120101122220 is 222211010212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2120101122194 and 2120101122203.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 261790 + ... + 2075749.

It is an arithmetic number, because the mean of its divisors is an integer number (93881450250).

Almost surely, 2^{2120101122220} is an apocalyptic number.

2120101122220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120101122220 is an abundant number, since it is smaller than the sum of its proper divisors (2386208489780).

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

2120101122220 is a wasteful number, since it uses less digits than its factorization.

2120101122220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2338098 (or 2338096 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2120101122220 its reverse (222211010212), we get a palindrome (2342312132432).

The spelling of 2120101122220 in words is "two trillion, one hundred twenty billion, one hundred one million, one hundred twenty-two thousand, two hundred twenty".