1220211119923 has 2 divisors, whose sum is σ = 1220211119924. Its totient is φ = 1220211119922.

The previous prime is 1220211119903. The next prime is 1220211120017. The reversal of 1220211119923 is 3299111120221.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1220211119923 - 2²⁹ = 1219674249011 is a prime.

It is not a weakly prime, because it can be changed into another prime (1220211119903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610105559961 + 610105559962.

It is an arithmetic number, because the mean of its divisors is an integer number (610105559962).

Almost surely, 2^{1220211119923} is an apocalyptic number.

1220211119923 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220211119923 is an equidigital number, since it uses as much as digits as its factorization.

1220211119923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 34.

The spelling of 1220211119923 in words is "one trillion, two hundred twenty billion, two hundred eleven million, one hundred nineteen thousand, nine hundred twenty-three".