1203122221212 has 12 divisors (see below), whose sum is σ = 2807285182856. Its totient is φ = 401040740400.

The previous prime is 1203122221207. The next prime is 1203122221219. The reversal of 1203122221212 is 2121222213021.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1203122221219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50130092539 + ... + 50130092562.

Almost surely, 2^{1203122221212} is an apocalyptic number.

1203122221212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1203122221212 is an abundant number, since it is smaller than the sum of its proper divisors (1604162961644).

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

1203122221212 is a wasteful number, since it uses less digits than its factorization.

1203122221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100260185108 (or 100260185106 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 1203122221212 its reverse (2121222213021), we get a palindrome (3324344434233).

The spelling of 1203122221212 in words is "one trillion, two hundred three billion, one hundred twenty-two million, two hundred twenty-one thousand, two hundred twelve".