1226115201 has 48 divisors (see below), whose sum is σ = 1788785856. Its totient is φ = 746468352.

The previous prime is 1226115199. The next prime is 1226115203. The reversal of 1226115201 is 1025116221.

It is an interprime number because it is at equal distance from previous prime (1226115199) and next prime (1226115203).

It is not a de Polignac number, because 1226115201 - 2¹ = 1226115199 is a prime.

It is a super-2 number, since 2×1226115201² = 3006716972246540802, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226115203) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5262181 + ... + 5262413.

It is an arithmetic number, because the mean of its divisors is an integer number (37266372).

Almost surely, 2^1226115201 is an apocalyptic number.

It is an amenable number.

1226115201 is a deficient number, since it is larger than the sum of its proper divisors (562670655).

1226115201 is a wasteful number, since it uses less digits than its factorization.

1226115201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430 (or 411 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 1226115201 is about 35015.9278186370. The cubic root of 1226115201 is about 1070.3120762636.

The spelling of 1226115201 in words is "one billion, two hundred twenty-six million, one hundred fifteen thousand, two hundred one".