1220100222091 has 2 divisors, whose sum is σ = 1220100222092. Its totient is φ = 1220100222090.

The previous prime is 1220100222037. The next prime is 1220100222127. The reversal of 1220100222091 is 1902220010221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1220100222091 is a prime.

It is a super-3 number, since 3×1220100222091³ (a number of 37 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1220100222031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610050111045 + 610050111046.

It is an arithmetic number, because the mean of its divisors is an integer number (610050111046).

Almost surely, 2^{1220100222091} is an apocalyptic number.

1220100222091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220100222091 is an equidigital number, since it uses as much as digits as its factorization.

1220100222091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 1220100222091 in words is "one trillion, two hundred twenty billion, one hundred million, two hundred twenty-two thousand, ninety-one".