222011421101 has 4 divisors (see below), whose sum is σ = 222130719804. Its totient is φ = 221892122400.

The previous prime is 222011421091. The next prime is 222011421119. The reversal of 222011421101 is 101124110222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 101124110222 = 2 ⋅50562055111.

It can be written as a sum of positive squares in 2 ways, for example, as 3987796201 + 218023624900 = 63149^2 + 466930^2 .

It is a cyclic number.

It is not a de Polignac number, because 222011421101 - 2²⁶ = 221944312237 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 222011421101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222011421131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59646560 + ... + 59650281.

It is an arithmetic number, because the mean of its divisors is an integer number (55532679951).

Almost surely, 2^222011421101 is an apocalyptic number.

It is an amenable number.

222011421101 is a deficient number, since it is larger than the sum of its proper divisors (119298703).

222011421101 is a wasteful number, since it uses less digits than its factorization.

222011421101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119298702.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 222011421101 its reverse (101124110222), we get a palindrome (323135531323).

The spelling of 222011421101 in words is "two hundred twenty-two billion, eleven million, four hundred twenty-one thousand, one hundred one".