2142321340220 has 12 divisors (see below), whose sum is σ = 4498874814504. Its totient is φ = 856928536080.

The previous prime is 2142321340163. The next prime is 2142321340223. The reversal of 2142321340220 is 220431232412.

It is a self number, because there is not a number n which added to its sum of digits gives 2142321340220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142321340223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53558033486 + ... + 53558033525.

It is an arithmetic number, because the mean of its divisors is an integer number (374906234542).

Almost surely, 2^{2142321340220} is an apocalyptic number.

2142321340220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2142321340220 is an abundant number, since it is smaller than the sum of its proper divisors (2356553474284).

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

2142321340220 is a wasteful number, since it uses less digits than its factorization.

2142321340220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107116067020 (or 107116067018 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 2142321340220 its reverse (220431232412), we get a palindrome (2362752572632).

The spelling of 2142321340220 in words is "two trillion, one hundred forty-two billion, three hundred twenty-one million, three hundred forty thousand, two hundred twenty".