2121020002122 has 32 divisors (see below), whose sum is σ = 4850495654400. Its totient is φ = 605699473008.

The previous prime is 2121020002081. The next prime is 2121020002163. The reversal of 2121020002122 is 2212000201212.

It is an interprime number because it is at equal distance from previous prime (2121020002081) and next prime (2121020002163).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12675972 + ... + 12842207.

It is an arithmetic number, because the mean of its divisors is an integer number (151577989200).

Almost surely, 2^{2121020002122} is an apocalyptic number.

2121020002122 is an abundant number, since it is smaller than the sum of its proper divisors (2729475652278).

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

2121020002122 is a wasteful number, since it uses less digits than its factorization.

2121020002122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25520170.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 2121020002122 its reverse (2212000201212), we get a palindrome (4333020203334).

The spelling of 2121020002122 in words is "two trillion, one hundred twenty-one billion, twenty million, two thousand, one hundred twenty-two".