2130222120021 has 24 divisors (see below), whose sum is σ = 3121253606016. Its totient is φ = 1399729474080.

The previous prime is 2130222119983. The next prime is 2130222120043. The reversal of 2130222120021 is 1200212220312.

It is not a de Polignac number, because 2130222120021 - 2²¹ = 2130220022869 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2130222119976 and 2130222120003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130222125021) 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, 1661176 + ... + 2649518.

It is an arithmetic number, because the mean of its divisors is an integer number (130052233584).

Almost surely, 2^{2130222120021} is an apocalyptic number.

It is an amenable number.

2130222120021 is a deficient number, since it is larger than the sum of its proper divisors (991031485995).

2130222120021 is a wasteful number, since it uses less digits than its factorization.

2130222120021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991793 (or 991790 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 2130222120021 its reverse (1200212220312), we get a palindrome (3330434340333).

The spelling of 2130222120021 in words is "two trillion, one hundred thirty billion, two hundred twenty-two million, one hundred twenty thousand, twenty-one".