1101220101012 has 12 divisors (see below), whose sum is σ = 2569513569056. Its totient is φ = 367073367000.

The previous prime is 1101220100987. The next prime is 1101220101019. The reversal of 1101220101012 is 2101010221011.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 91768341751 = 1101220101012 / (1 + 1 + 0 + 1 + 2 + 2 + 0 + 1 + 0 + 1 + 0 + 1 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101220101019) 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, 45884170864 + ... + 45884170887.

Almost surely, 2^{1101220101012} is an apocalyptic number.

1101220101012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1101220101012 is an abundant number, since it is smaller than the sum of its proper divisors (1468293468044).

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

1101220101012 is a wasteful number, since it uses less digits than its factorization.

1101220101012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91768341758 (or 91768341756 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1101220101012 its reverse (2101010221011), we get a palindrome (3202230322023).

The spelling of 1101220101012 in words is "one trillion, one hundred one billion, two hundred twenty million, one hundred one thousand, twelve".