2110210123421 has 8 divisors (see below), whose sum is σ = 2122923090624. Its totient is φ = 2097498072960.

The previous prime is 2110210123363. The next prime is 2110210123457. The reversal of 2110210123421 is 1243210120112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2110210123421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2110210123393 and 2110210123402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2110210123321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4707626 + ... + 5136356.

It is an arithmetic number, because the mean of its divisors is an integer number (265365386328).

Almost surely, 2^{2110210123421} is an apocalyptic number.

It is an amenable number.

2110210123421 is a deficient number, since it is larger than the sum of its proper divisors (12712967203).

2110210123421 is a wasteful number, since it uses less digits than its factorization.

2110210123421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458371.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 2110210123421 its reverse (1243210120112), we get a palindrome (3353420243533).

The spelling of 2110210123421 in words is "two trillion, one hundred ten billion, two hundred ten million, one hundred twenty-three thousand, four hundred twenty-one".