210121000011012 has 12 divisors (see below), whose sum is σ = 490282333359056. Its totient is φ = 70040333337000.

The previous prime is 210121000010969. The next prime is 210121000011023. The reversal of 210121000011012 is 210110000121012.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 17510083334251 = 210121000011012 / (2 + 1 + 0 + 1 + 2 + 1 + 0 + 0 + 0 + 0 + 1 + 1 + 0 + 1 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8755041667114 + ... + 8755041667137.

Almost surely, 2^{210121000011012} is an apocalyptic number.

It is an amenable number.

210121000011012 is an abundant number, since it is smaller than the sum of its proper divisors (280161333348044).

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

210121000011012 is a wasteful number, since it uses less digits than its factorization.

210121000011012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17510083334258 (or 17510083334256 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 210121000011012 its reverse (210110000121012), we get a palindrome (420231000132024).

It can be divided in two parts, 2101210000 and 11012, that added together give a palindrome (2101221012).

The spelling of 210121000011012 in words is "two hundred ten trillion, one hundred twenty-one billion, eleven thousand, twelve".