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122221101 = 3371101091
BaseRepresentation
bin1110100100011…
…11001000101101
322111222110211110
413102033020231
5222242033401
620043342233
73012601512
oct722171055
9274873743
10122221101
1162a99582
1234b21979
131c423ba2
1412337309
15aae39d6
hex748f22d

122221101 has 8 divisors (see below), whose sum is σ = 167365984. Its totient is φ = 79278480.

The previous prime is 122221087. The next prime is 122221147. The reversal of 122221101 is 101122221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 122221101 - 29 = 122220589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122221181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 550435 + ... + 550656.

It is an arithmetic number, because the mean of its divisors is an integer number (20920748).

Almost surely, 2122221101 is an apocalyptic number.

It is an amenable number.

122221101 is a deficient number, since it is larger than the sum of its proper divisors (45144883).

122221101 is a wasteful number, since it uses less digits than its factorization.

122221101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101131.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 122221101 is about 11055.3652585521. The cubic root of 122221101 is about 496.2670001177.

Adding to 122221101 its reverse (101122221), we get a palindrome (223343322).

It can be divided in two parts, 122221 and 101, that multiplied together give a palindrome (12344321).

The spelling of 122221101 in words is "one hundred twenty-two million, two hundred twenty-one thousand, one hundred one".