1211012101122 has 16 divisors (see below), whose sum is σ = 2424659712960. Its totient is φ = 403231448592.

The previous prime is 1211012101109. The next prime is 1211012101141. The reversal of 1211012101122 is 2211012101121.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109806973 + ... + 109818000.

It is an arithmetic number, because the mean of its divisors is an integer number (151541232060).

Almost surely, 2^{1211012101122} is an apocalyptic number.

1211012101122 is an abundant number, since it is smaller than the sum of its proper divisors (1213647611838).

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

1211012101122 is a wasteful number, since it uses less digits than its factorization.

1211012101122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219625897.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1211012101122 its reverse (2211012101121), we get a palindrome (3422024202243).

Subtracting 1211012101122 from its reverse (2211012101121), we obtain a palindrome (999999999999).

The spelling of 1211012101122 in words is "one trillion, two hundred eleven billion, twelve million, one hundred one thousand, one hundred twenty-two".