651033222 has 64 divisors (see below), whose sum is σ = 1517128704. Its totient is φ = 182407680.

The previous prime is 651033221. The next prime is 651033281. The reversal of 651033222 is 222330156.

It is a super-2 number, since 2×651033222² = 847688512295402568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 651033192 and 651033201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (651033221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 694338 + ... + 695274.

It is an arithmetic number, because the mean of its divisors is an integer number (23705136).

Almost surely, 2^651033222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 651033222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (758564352).

651033222 is an abundant number, since it is smaller than the sum of its proper divisors (866095482).

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

651033222 is a wasteful number, since it uses less digits than its factorization.

651033222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 651033222 is about 25515.3526724598. The cubic root of 651033222 is about 866.6978455910.

Adding to 651033222 its reverse (222330156), we get a palindrome (873363378).

The spelling of 651033222 in words is "six hundred fifty-one million, thirty-three thousand, two hundred twenty-two".