221222401033401 has 12 divisors (see below), whose sum is σ = 320087835233712. Its totient is φ = 147230354346936.

The previous prime is 221222401033399. The next prime is 221222401033409. The reversal of 221222401033401 is 104330104222122.

221222401033401 is a `hidden beast` number, since 2 + 2 + 1 + 2 + 2 + 240 + 10 + 3 + 3 + 401 = 666.

It is not a de Polignac number, because 221222401033401 - 2¹ = 221222401033399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221222401033409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20937189591 + ... + 20937200156.

It is an arithmetic number, because the mean of its divisors is an integer number (26673986269476).

Almost surely, 2^{221222401033401} is an apocalyptic number.

It is an amenable number.

221222401033401 is a deficient number, since it is larger than the sum of its proper divisors (98865434200311).

221222401033401 is a wasteful number, since it uses less digits than its factorization.

221222401033401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41874390340 (or 41874390337 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 221222401033401 its reverse (104330104222122), we get a palindrome (325552505255523).

The spelling of 221222401033401 in words is "two hundred twenty-one trillion, two hundred twenty-two billion, four hundred one million, thirty-three thousand, four hundred one".