210120212021120 has 128 divisors (see below), whose sum is σ = 529554853785600. Its totient is φ = 79606284503040.

The previous prime is 210120212021099. The next prime is 210120212021131. The reversal of 210120212021120 is 21120212021012.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

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, 111734930 + ... + 113599889.

It is an arithmetic number, because the mean of its divisors is an integer number (4137147295200).

Almost surely, 2^{210120212021120} is an apocalyptic number.

210120212021120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210120212021120 is an abundant number, since it is smaller than the sum of its proper divisors (319434641764480).

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

210120212021120 is a wasteful number, since it uses less digits than its factorization.

210120212021120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225334916 (or 225334904 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 210120212021120 its reverse (21120212021012), we get a palindrome (231240424042132).

The spelling of 210120212021120 in words is "two hundred ten trillion, one hundred twenty billion, two hundred twelve million, twenty-one thousand, one hundred twenty".