1012222101 has 32 divisors (see below), whose sum is σ = 1505226240. Its totient is φ = 599912000.

The previous prime is 1012222087. The next prime is 1012222117.

1012222101 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 1012222101 - 2²⁷ = 878004373 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012222201) 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, 274810 + ... + 278468.

It is an arithmetic number, because the mean of its divisors is an integer number (47038320).

Almost surely, 2^1012222101 is an apocalyptic number.

1012222101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1012222101 is a deficient number, since it is larger than the sum of its proper divisors (493004139).

1012222101 is a wasteful number, since it uses less digits than its factorization.

1012222101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3857.

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

The square root of 1012222101 is about 31815.4380922218. The cubic root of 1012222101 is about 1004.0575477059.

It can be divided in two parts, 10122 and 22101, that added together give a palindrome (32223).

The spelling of 1012222101 in words is "one billion, twelve million, two hundred twenty-two thousand, one hundred one".