1201622630 has 32 divisors (see below), whose sum is σ = 2334788064. Its totient is φ = 442630656.

The previous prime is 1201622621. The next prime is 1201622657. The reversal of 1201622630 is 362261021.

It is a junction number, because it is equal to n+sod(n) for n = 1201622596 and 1201622605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45617 + ... + 66963.

It is an arithmetic number, because the mean of its divisors is an integer number (72962127).

Almost surely, 2^1201622630 is an apocalyptic number.

1201622630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1201622630 is a deficient number, since it is larger than the sum of its proper divisors (1133165434).

1201622630 is a wasteful number, since it uses less digits than its factorization.

1201622630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21800.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1201622630 is about 34664.4288861074. The cubic root of 1201622630 is about 1063.1373261443.

Adding to 1201622630 its reverse (362261021), we get a palindrome (1563883651).

The spelling of 1201622630 in words is "one billion, two hundred one million, six hundred twenty-two thousand, six hundred thirty".