210012010122121 has 8 divisors (see below), whose sum is σ = 214324122818624. Its totient is φ = 205734532869360.

The previous prime is 210012010122043. The next prime is 210012010122151. The reversal of 210012010122121 is 121221010210012.

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

It is a cyclic number.

It is not a de Polignac number, because 210012010122121 - 2³¹ = 210009862638473 is a prime.

It is a super-2 number, since 2×210012010122121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210012010122095 and 210012010122104.

It is not an unprimeable number, because it can be changed into a prime (210012010122151) 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, 8658848685 + ... + 8658872938.

It is an arithmetic number, because the mean of its divisors is an integer number (26790515352328).

Almost surely, 2^{210012010122121} is an apocalyptic number.

It is an amenable number.

210012010122121 is a deficient number, since it is larger than the sum of its proper divisors (4312112696503).

210012010122121 is a wasteful number, since it uses less digits than its factorization.

210012010122121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17317721871.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 210012010122121 its reverse (121221010210012), we get a palindrome (331233020332133).

The spelling of 210012010122121 in words is "two hundred ten trillion, twelve billion, ten million, one hundred twenty-two thousand, one hundred twenty-one".