212101012121012 has 24 divisors (see below), whose sum is σ = 424243317723456. Its totient is φ = 90891585163008.

The previous prime is 212101012120889. The next prime is 212101012121021. The reversal of 212101012121012 is 210121210101212.

212101012121012 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 368399018 + ... + 368974305.

It is an arithmetic number, because the mean of its divisors is an integer number (17676804905144).

Almost surely, 2^{212101012121012} is an apocalyptic number.

It is an amenable number.

212101012121012 is an abundant number, since it is smaller than the sum of its proper divisors (212142305602444).

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

212101012121012 is a wasteful number, since it uses less digits than its factorization.

212101012121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737383607 (or 737383605 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 212101012121012 its reverse (210121210101212), we get a palindrome (422222222222224).

The spelling of 212101012121012 in words is "two hundred twelve trillion, one hundred one billion, twelve million, one hundred twenty-one thousand, twelve".