1011244525220 has 48 divisors (see below), whose sum is σ = 2183919830400. Its totient is φ = 393105436416.

The previous prime is 1011244525117. The next prime is 1011244525229. The reversal of 1011244525220 is 225254421101.

It is not an unprimeable number, because it can be changed into a prime (1011244525229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2783297 + ... + 3125576.

It is an arithmetic number, because the mean of its divisors is an integer number (45498329800).

Almost surely, 2^{1011244525220} is an apocalyptic number.

1011244525220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011244525220 is an abundant number, since it is smaller than the sum of its proper divisors (1172675305180).

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

1011244525220 is a wasteful number, since it uses less digits than its factorization.

1011244525220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5909124 (or 5909122 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 29.

Adding to 1011244525220 its reverse (225254421101), we get a palindrome (1236498946321).

The spelling of 1011244525220 in words is "one trillion, eleven billion, two hundred forty-four million, five hundred twenty-five thousand, two hundred twenty".