1121222011000 has 128 divisors (see below), whose sum is σ = 3229119653760. Its totient is φ = 354848256000.

The previous prime is 1121222010773. The next prime is 1121222011003. The reversal of 1121222011000 is 1102221211.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121222011003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6069561 + ... + 6251560.

It is an arithmetic number, because the mean of its divisors is an integer number (25227497295).

Almost surely, 2^{1121222011000} is an apocalyptic number.

1121222011000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121222011000 is an abundant number, since it is smaller than the sum of its proper divisors (2107897642760).

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

1121222011000 is a wasteful number, since it uses less digits than its factorization.

1121222011000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12321162 (or 12321148 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1121222011000 its reverse (1102221211), we get a palindrome (1122324232211).

The spelling of 1121222011000 in words is "one trillion, one hundred twenty-one billion, two hundred twenty-two million, eleven thousand".