2212220121091 has 2 divisors, whose sum is σ = 2212220121092. Its totient is φ = 2212220121090.

The previous prime is 2212220121077. The next prime is 2212220121119. The reversal of 2212220121091 is 1901210222122.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2212220121091 is a prime.

It is not a weakly prime, because it can be changed into another prime (2219220121091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1106110060545 + 1106110060546.

It is an arithmetic number, because the mean of its divisors is an integer number (1106110060546).

Almost surely, 2^{2212220121091} is an apocalyptic number.

2212220121091 is a deficient number, since it is larger than the sum of its proper divisors (1).

2212220121091 is an equidigital number, since it uses as much as digits as its factorization.

2212220121091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 25.

The spelling of 2212220121091 in words is "two trillion, two hundred twelve billion, two hundred twenty million, one hundred twenty-one thousand, ninety-one".