1222100101 has 8 divisors (see below), whose sum is σ = 1287863424. Its totient is φ = 1157389200.

The previous prime is 1222100071. The next prime is 1222100137. The reversal of 1222100101 is 1010012221.

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

It is a cyclic number.

It is not a de Polignac number, because 1222100101 - 2²⁵ = 1188545669 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 (1222100141) 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, 260721 + ... + 265366.

It is an arithmetic number, because the mean of its divisors is an integer number (160982928).

Almost surely, 2^1222100101 is an apocalyptic number.

It is an amenable number.

1222100101 is a deficient number, since it is larger than the sum of its proper divisors (65763323).

1222100101 is a wasteful number, since it uses less digits than its factorization.

1222100101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526211.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1222100101 is about 34958.5483251236. The cubic root of 1222100101 is about 1069.1424989932.

Adding to 1222100101 its reverse (1010012221), we get a palindrome (2232112322).

It can be divided in two parts, 1222100 and 101, that multiplied together give a square (123432100 = 11110²).

The spelling of 1222100101 in words is "one billion, two hundred twenty-two million, one hundred thousand, one hundred one".