2211500156 has 12 divisors (see below), whose sum is σ = 3870457080. Its totient is φ = 1105655280.

The previous prime is 2211500113. The next prime is 2211500171. The reversal of 2211500156 is 6510051122.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69590 + ... + 96258.

It is an arithmetic number, because the mean of its divisors is an integer number (322538090).

Almost surely, 2^2211500156 is an apocalyptic number.

It is an amenable number.

2211500156 is a deficient number, since it is larger than the sum of its proper divisors (1658956924).

2211500156 is a wasteful number, since it uses less digits than its factorization.

2211500156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47404 (or 47402 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 2211500156 is about 47026.5898827461. The cubic root of 2211500156 is about 1302.8537223291.

Adding to 2211500156 its reverse (6510051122), we get a palindrome (8721551278).

The spelling of 2211500156 in words is "two billion, two hundred eleven million, five hundred thousand, one hundred fifty-six".