10121111012212 has 6 divisors (see below), whose sum is σ = 17711944271378. Its totient is φ = 5060555506104.

The previous prime is 10121111012113. The next prime is 10121111012303. The reversal of 10121111012212 is 21221011112101.

It can be written as a sum of positive squares in only one way, i.e., 9021456773476 + 1099654238736 = 3003574^2 + 1048644^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1265138876523 + ... + 1265138876530.

Almost surely, 2^{10121111012212} is an apocalyptic number.

It is an amenable number.

10121111012212 is a deficient number, since it is larger than the sum of its proper divisors (7590833259166).

10121111012212 is a wasteful number, since it uses less digits than its factorization.

10121111012212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2530277753057 (or 2530277753055 counting only the distinct ones).

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

Adding to 10121111012212 its reverse (21221011112101), we get a palindrome (31342122124313).

The spelling of 10121111012212 in words is "ten trillion, one hundred twenty-one billion, one hundred eleven million, twelve thousand, two hundred twelve".