1222021101012 has 12 divisors (see below), whose sum is σ = 2851382569056. Its totient is φ = 407340367000.

The previous prime is 1222021101001. The next prime is 1222021101023. The reversal of 1222021101012 is 2101011202221.

It is an interprime number because it is at equal distance from previous prime (1222021101001) and next prime (1222021101023).

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1222021100982 and 1222021101000.

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 in 3 ways as a sum of consecutive naturals, for example, 50917545864 + ... + 50917545887.

It is an arithmetic number, because the mean of its divisors is an integer number (237615214088).

Almost surely, 2^{1222021101012} is an apocalyptic number.

1222021101012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1222021101012 is an abundant number, since it is smaller than the sum of its proper divisors (1629361468044).

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

1222021101012 is a wasteful number, since it uses less digits than its factorization.

1222021101012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101835091758 (or 101835091756 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1222021101012 its reverse (2101011202221), we get a palindrome (3323032303233).

The spelling of 1222021101012 in words is "one trillion, two hundred twenty-two billion, twenty-one million, one hundred one thousand, twelve".