2120211342 has 32 divisors (see below), whose sum is σ = 4719008160. Its totient is φ = 705623040.

The previous prime is 2120211337. The next prime is 2120211347. The reversal of 2120211342 is 2431120212.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2120211337) and next prime (2120211347).

It is a super-2 number, since 2×2120211342² = 8990592269490881928, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120211347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3988 + ... + 65240.

It is an arithmetic number, because the mean of its divisors is an integer number (147469005).

Almost surely, 2^2120211342 is an apocalyptic number.

2120211342 is an abundant number, since it is smaller than the sum of its proper divisors (2598796818).

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

2120211342 is a wasteful number, since it uses less digits than its factorization.

2120211342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61905 (or 61899 counting only the distinct ones).

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

The square root of 2120211342 is about 46045.7527031538. The cubic root of 2120211342 is about 1284.6743444424.

Adding to 2120211342 its reverse (2431120212), we get a palindrome (4551331554).

The spelling of 2120211342 in words is "two billion, one hundred twenty million, two hundred eleven thousand, three hundred forty-two".