1212001211222 has 16 divisors (see below), whose sum is σ = 1820536238592. Its totient is φ = 605156371560.

The previous prime is 1212001211219. The next prime is 1212001211263. The reversal of 1212001211222 is 2221121002121.

It is a self number, because there is not a number n which added to its sum of digits gives 1212001211222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4131347 + ... + 4414977.

It is an arithmetic number, because the mean of its divisors is an integer number (113783514912).

Almost surely, 2^{1212001211222} is an apocalyptic number.

1212001211222 is a deficient number, since it is larger than the sum of its proper divisors (608535027370).

1212001211222 is a wasteful number, since it uses less digits than its factorization.

1212001211222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286603.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1212001211222 its reverse (2221121002121), we get a palindrome (3433122213343).

The spelling of 1212001211222 in words is "one trillion, two hundred twelve billion, one million, two hundred eleven thousand, two hundred twenty-two".