1012210002121 has 16 divisors (see below), whose sum is σ = 1057237853184. Its totient is φ = 967267589904.

The previous prime is 1012210002107. The next prime is 1012210002157. The reversal of 1012210002121 is 1212000122101.

It is a cyclic number.

It is not a de Polignac number, because 1012210002121 - 2¹³ = 1012209993929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012210002721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134117070 + ... + 134124616.

It is an arithmetic number, because the mean of its divisors is an integer number (66077365824).

Almost surely, 2^{1012210002121} is an apocalyptic number.

It is an amenable number.

1012210002121 is a deficient number, since it is larger than the sum of its proper divisors (45027851063).

1012210002121 is a wasteful number, since it uses less digits than its factorization.

1012210002121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12420.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1012210002121 its reverse (1212000122101), we get a palindrome (2224210124222).

The spelling of 1012210002121 in words is "one trillion, twelve billion, two hundred ten million, two thousand, one hundred twenty-one".