2120212221210 has 48 divisors (see below), whose sum is σ = 5567131519560. Its totient is φ = 559792003200.

The previous prime is 2120212221143. The next prime is 2120212221277. The reversal of 2120212221210 is 121222120212.

It is a happy number.

2120212221210 is a `hidden beast` number, since 2 + 1 + 20 + 212 + 221 + 210 = 666.

It is an interprime number because it is at equal distance from previous prime (2120212221143) and next prime (2120212221277).

It can be written as a sum of positive squares in 4 ways, for example, as 2051703870129 + 68508351081 = 1432377^2 + 261741^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 116614245 + ... + 116632424.

Almost surely, 2^{2120212221210} is an apocalyptic number.

2120212221210 is an abundant number, since it is smaller than the sum of its proper divisors (3446919298350).

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

2120212221210 is a wasteful number, since it uses less digits than its factorization.

2120212221210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233246783 (or 233246780 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2120212221210 its reverse (121222120212), we get a palindrome (2241434341422).

The spelling of 2120212221210 in words is "two trillion, one hundred twenty billion, two hundred twelve million, two hundred twenty-one thousand, two hundred ten".