1221212002119 has 48 divisors (see below), whose sum is σ = 1766822803200. Its totient is φ = 748203111936.

The previous prime is 1221212002103. The next prime is 1221212002133. The reversal of 1221212002119 is 9112002121221.

It is not a de Polignac number, because 1221212002119 - 2⁴ = 1221212002103 is a prime.

It is a super-2 number, since 2×1221212002119² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1221212002919) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26273902 + ... + 26320340.

It is an arithmetic number, because the mean of its divisors is an integer number (36808808400).

Almost surely, 2^{1221212002119} is an apocalyptic number.

1221212002119 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1221212002119 is a deficient number, since it is larger than the sum of its proper divisors (545610801081).

1221212002119 is a wasteful number, since it uses less digits than its factorization.

1221212002119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46872 (or 46835 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 24.

The spelling of 1221212002119 in words is "one trillion, two hundred twenty-one billion, two hundred twelve million, two thousand, one hundred nineteen".