2121001222102 has 8 divisors (see below), whose sum is σ = 3636002095056. Its totient is φ = 909000523752.

The previous prime is 2121001222069. The next prime is 2121001222117. The reversal of 2121001222102 is 2012221001212.

It is a happy number.

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

It is a congruent number.

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, 75750043633 + ... + 75750043660.

It is an arithmetic number, because the mean of its divisors is an integer number (454500261882).

Almost surely, 2^{2121001222102} is an apocalyptic number.

2121001222102 is a deficient number, since it is larger than the sum of its proper divisors (1515000872954).

2121001222102 is a wasteful number, since it uses less digits than its factorization.

2121001222102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151500087302.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2121001222102 its reverse (2012221001212), we get a palindrome (4133222223314).

The spelling of 2121001222102 in words is "two trillion, one hundred twenty-one billion, one million, two hundred twenty-two thousand, one hundred two".