1022211121187 has 2 divisors, whose sum is σ = 1022211121188. Its totient is φ = 1022211121186.

The previous prime is 1022211121181. The next prime is 1022211121241. The reversal of 1022211121187 is 7811211122201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1022211121187 - 2²² = 1022206926883 is a prime.

It is not a weakly prime, because it can be changed into another prime (1022211121181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511105560593 + 511105560594.

It is an arithmetic number, because the mean of its divisors is an integer number (511105560594).

Almost surely, 2^{1022211121187} is an apocalyptic number.

1022211121187 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022211121187 is an equidigital number, since it uses as much as digits as its factorization.

1022211121187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 29.

Adding to 1022211121187 its reverse (7811211122201), we get a palindrome (8833422243388).

The spelling of 1022211121187 in words is "one trillion, twenty-two billion, two hundred eleven million, one hundred twenty-one thousand, one hundred eighty-seven".