1212872262 has 16 divisors (see below), whose sum is σ = 2772279552. Its totient is φ = 346534920.

The previous prime is 1212872261. The next prime is 1212872329. The reversal of 1212872262 is 2622782121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212872261) 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, 14438914 + ... + 14438997.

It is an arithmetic number, because the mean of its divisors is an integer number (173267472).

Almost surely, 2^1212872262 is an apocalyptic number.

1212872262 is an abundant number, since it is smaller than the sum of its proper divisors (1559407290).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1212872262 is a wasteful number, since it uses less digits than its factorization.

1212872262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28877923.

The product of its digits is 10752, while the sum is 33.

The square root of 1212872262 is about 34826.3156535399. The cubic root of 1212872262 is about 1066.4447354470. Note that the first 3 decimals are identical.

The spelling of 1212872262 in words is "one billion, two hundred twelve million, eight hundred seventy-two thousand, two hundred sixty-two".