1222212030 has 64 divisors (see below), whose sum is σ = 3179227968. Its totient is φ = 298920960.

The previous prime is 1222212023. The next prime is 1222212077. The reversal of 1222212030 is 302122221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51250 + ... + 71210.

It is an arithmetic number, because the mean of its divisors is an integer number (49675437).

Almost surely, 2^1222212030 is an apocalyptic number.

1222212030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1222212030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1589613984).

1222212030 is an abundant number, since it is smaller than the sum of its proper divisors (1957015938).

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

1222212030 is a wasteful number, since it uses less digits than its factorization.

1222212030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20141.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1222212030 is about 34960.1491701623. The cubic root of 1222212030 is about 1069.1751379992.

Adding to 1222212030 its reverse (302122221), we get a palindrome (1524334251).

It can be divided in two parts, 122221 and 2030, that added together give a triangular number (124251 = T₄₉₈).

The spelling of 1222212030 in words is "one billion, two hundred twenty-two million, two hundred twelve thousand, thirty".