2101012121212 has 6 divisors (see below), whose sum is σ = 3676771212128. Its totient is φ = 1050506060604.

The previous prime is 2101012121189. The next prime is 2101012121269. The reversal of 2101012121212 is 2121212101012.

2101012121212 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 as a sum of consecutive naturals, namely, 262626515148 + ... + 262626515155.

Almost surely, 2^{2101012121212} is an apocalyptic number.

It is an amenable number.

2101012121212 is a deficient number, since it is larger than the sum of its proper divisors (1575759090916).

2101012121212 is a wasteful number, since it uses less digits than its factorization.

2101012121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525253030307 (or 525253030305 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2101012121212 its reverse (2121212101012), we get a palindrome (4222224222224).

The spelling of 2101012121212 in words is "two trillion, one hundred one billion, twelve million, one hundred twenty-one thousand, two hundred twelve".