221001221211094 has 4 divisors (see below), whose sum is σ = 331501831816644. Its totient is φ = 110500610605546.

The previous prime is 221001221211077. The next prime is 221001221211137. The reversal of 221001221211094 is 490112122100122.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×221001221211094² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55250305302772 + ... + 55250305302775.

It is an arithmetic number, because the mean of its divisors is an integer number (82875457954161).

Almost surely, 2^{221001221211094} is an apocalyptic number.

221001221211094 is a deficient number, since it is larger than the sum of its proper divisors (110500610605550).

221001221211094 is a wasteful number, since it uses less digits than its factorization.

221001221211094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110500610605549.

The product of its (nonzero) digits is 1152, while the sum is 28.

The spelling of 221001221211094 in words is "two hundred twenty-one trillion, one billion, two hundred twenty-one million, two hundred eleven thousand, ninety-four".