1002212210121 has 16 divisors (see below), whose sum is σ = 1406637696000. Its totient is φ = 632965302288.

The previous prime is 1002212210119. The next prime is 1002212210171. The reversal of 1002212210121 is 1210122122001.

It is not a de Polignac number, because 1002212210121 - 2¹ = 1002212210119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1002212210121.

It is not an unprimeable number, because it can be changed into a prime (1002212210171) 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, 4415020 + ... + 4636466.

It is an arithmetic number, because the mean of its divisors is an integer number (87914856000).

Almost surely, 2^{1002212210121} is an apocalyptic number.

It is an amenable number.

1002212210121 is a deficient number, since it is larger than the sum of its proper divisors (404425485879).

1002212210121 is a wasteful number, since it uses less digits than its factorization.

1002212210121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300868.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1002212210121 its reverse (1210122122001), we get a palindrome (2212334332122).

The spelling of 1002212210121 in words is "one trillion, two billion, two hundred twelve million, two hundred ten thousand, one hundred twenty-one".