1220152633 has 4 divisors (see below), whose sum is σ = 1394460160. Its totient is φ = 1045845108.

The previous prime is 1220152613. The next prime is 1220152639. The reversal of 1220152633 is 3362510221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3362510221 = 7 ⋅480358603.

It is not a de Polignac number, because 1220152633 - 2¹³ = 1220144441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1220152598 and 1220152607.

It is not an unprimeable number, because it can be changed into a prime (1220152639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87153753 + ... + 87153766.

It is an arithmetic number, because the mean of its divisors is an integer number (348615040).

Almost surely, 2^1220152633 is an apocalyptic number.

It is an amenable number.

1220152633 is a deficient number, since it is larger than the sum of its proper divisors (174307527).

1220152633 is an equidigital number, since it uses as much as digits as its factorization.

1220152633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174307526.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 1220152633 is about 34930.6832598505. The cubic root of 1220152633 is about 1068.5742891919.

Adding to 1220152633 its reverse (3362510221), we get a palindrome (4582662854).

The spelling of 1220152633 in words is "one billion, two hundred twenty million, one hundred fifty-two thousand, six hundred thirty-three".