1220101232135 has 8 divisors (see below), whose sum is σ = 1481761496880. Its totient is φ = 964320973504.

The previous prime is 1220101232131. The next prime is 1220101232167. The reversal of 1220101232135 is 5312321010221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1220101232135 - 2² = 1220101232131 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1220101232135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220101232131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1470001070 + ... + 1470001899.

It is an arithmetic number, because the mean of its divisors is an integer number (185220187110).

Almost surely, 2^{1220101232135} is an apocalyptic number.

1220101232135 is a deficient number, since it is larger than the sum of its proper divisors (261660264745).

1220101232135 is an equidigital number, since it uses as much as digits as its factorization.

1220101232135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2940003057.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 1220101232135 its reverse (5312321010221), we get a palindrome (6532422242356).

The spelling of 1220101232135 in words is "one trillion, two hundred twenty billion, one hundred one million, two hundred thirty-two thousand, one hundred thirty-five".