1212111000022 has 12 divisors (see below), whose sum is σ = 1968783843780. Its totient is φ = 559435846008.

The previous prime is 1212110999999. The next prime is 1212111000041. The reversal of 1212111000022 is 2200001112121.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 1212110999966 and 1212111000011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1793063272 + ... + 1793063947.

It is an arithmetic number, because the mean of its divisors is an integer number (164065320315).

Almost surely, 2^{1212111000022} is an apocalyptic number.

1212111000022 is a deficient number, since it is larger than the sum of its proper divisors (756672843758).

1212111000022 is a wasteful number, since it uses less digits than its factorization.

1212111000022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3586127247 (or 3586127234 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1212111000022 its reverse (2200001112121), we get a palindrome (3412112112143).

The spelling of 1212111000022 in words is "one trillion, two hundred twelve billion, one hundred eleven million, twenty-two", and thus it is an aban number.