2121052501212 has 48 divisors (see below), whose sum is σ = 5084466001440. Its totient is φ = 687694620672.

The previous prime is 2121052501201. The next prime is 2121052501223.

2121052501212 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (2121052501201) and next prime (2121052501223).

It is a super-2 number, since 2×2121052501212² (a number of 25 digits) contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 685864 + ... + 2170832.

It is an arithmetic number, because the mean of its divisors is an integer number (105926375030).

Almost surely, 2^{2121052501212} is an apocalyptic number.

It is an amenable number.

2121052501212 is an abundant number, since it is smaller than the sum of its proper divisors (2963413500228).

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

2121052501212 is a wasteful number, since it uses less digits than its factorization.

2121052501212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1488230 (or 1488228 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 24.

The spelling of 2121052501212 in words is "two trillion, one hundred twenty-one billion, fifty-two million, five hundred one thousand, two hundred twelve".