221113471270461 has 32 divisors (see below), whose sum is σ = 367576527080448. Its totient is φ = 114860617127040.

The previous prime is 221113471270459. The next prime is 221113471270469. The reversal of 221113471270461 is 164072174311122.

It is a happy number.

It is not a de Polignac number, because 221113471270461 - 2¹ = 221113471270459 is a prime.

It is a super-2 number, since 2×221113471270461² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221113471270469) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7127931 + ... + 22204376.

It is an arithmetic number, because the mean of its divisors is an integer number (11486766471264).

Almost surely, 2^{221113471270461} is an apocalyptic number.

221113471270461 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

221113471270461 is a deficient number, since it is larger than the sum of its proper divisors (146463055809987).

221113471270461 is a wasteful number, since it uses less digits than its factorization.

221113471270461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29364961.

The product of its (nonzero) digits is 112896, while the sum is 42.

The spelling of 221113471270461 in words is "two hundred twenty-one trillion, one hundred thirteen billion, four hundred seventy-one million, two hundred seventy thousand, four hundred sixty-one".