20100011121212 has 12 divisors (see below), whose sum is σ = 38372748504216. Its totient is φ = 9136368691440.

The previous prime is 20100011121181. The next prime is 20100011121221. The reversal of 20100011121212 is 21212111000102.

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, 228409217243 + ... + 228409217330.

It is an arithmetic number, because the mean of its divisors is an integer number (3197729042018).

Almost surely, 2^{20100011121212} is an apocalyptic number.

20100011121212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20100011121212 is a deficient number, since it is larger than the sum of its proper divisors (18272737383004).

20100011121212 is a wasteful number, since it uses less digits than its factorization.

20100011121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456818434588 (or 456818434586 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 20100011121212 its reverse (21212111000102), we get a palindrome (41312122121314).

The spelling of 20100011121212 in words is "twenty trillion, one hundred billion, eleven million, one hundred twenty-one thousand, two hundred twelve".