12101400402212 has 18 divisors (see below), whose sum is σ = 23277693749814. Its totient is φ = 5500636546240.

The previous prime is 12101400402173. The next prime is 12101400402227. The reversal of 12101400402212 is 21220400410121.

It can be written as a sum of positive squares in only one way, i.e., 9133064233216 + 2968336168996 = 3022096^2 + 1722886^2 .

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 in 5 ways as a sum of consecutive naturals, for example, 12501446213 + ... + 12501447180.

It is an arithmetic number, because the mean of its divisors is an integer number (1293205208323).

Almost surely, 2^{12101400402212} is an apocalyptic number.

It is an amenable number.

12101400402212 is a deficient number, since it is larger than the sum of its proper divisors (11176293347602).

12101400402212 is a wasteful number, since it uses less digits than its factorization.

12101400402212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25002893419 (or 25002893406 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 12101400402212 its reverse (21220400410121), we get a palindrome (33321800812333).

The spelling of 12101400402212 in words is "twelve trillion, one hundred one billion, four hundred million, four hundred two thousand, two hundred twelve".