1220101115135 has 32 divisors (see below), whose sum is σ = 1787637834240. Its totient is φ = 780777055872.

The previous prime is 1220101115119. The next prime is 1220101115141. The reversal of 1220101115135 is 5315111010221.

It is a cyclic number.

It is not a de Polignac number, because 1220101115135 - 2⁴ = 1220101115119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1220101115135.

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, 13647524 + ... + 13736633.

It is an arithmetic number, because the mean of its divisors is an integer number (55863682320).

Almost surely, 2^{1220101115135} is an apocalyptic number.

1220101115135 is a deficient number, since it is larger than the sum of its proper divisors (567536719105).

1220101115135 is a wasteful number, since it uses less digits than its factorization.

1220101115135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27384255.

The product of its (nonzero) digits is 300, while the sum is 23.

Adding to 1220101115135 its reverse (5315111010221), we get a palindrome (6535212125356).

The spelling of 1220101115135 in words is "one trillion, two hundred twenty billion, one hundred one million, one hundred fifteen thousand, one hundred thirty-five".