1011020221192 has 64 divisors (see below), whose sum is σ = 2005835788800. Its totient is φ = 476959176960.

The previous prime is 1011020221171. The next prime is 1011020221193. The reversal of 1011020221192 is 2911220201101.

It is not an unprimeable number, because it can be changed into a prime (1011020221193) 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, 7049317 + ... + 7191307.

It is an arithmetic number, because the mean of its divisors is an integer number (31341184200).

Almost surely, 2^{1011020221192} is an apocalyptic number.

It is an amenable number.

1011020221192 is a deficient number, since it is larger than the sum of its proper divisors (994815567608).

1011020221192 is a wasteful number, since it uses less digits than its factorization.

1011020221192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142726 (or 142722 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 22.

Adding to 1011020221192 its reverse (2911220201101), we get a palindrome (3922240422293).

The spelling of 1011020221192 in words is "one trillion, eleven billion, twenty million, two hundred twenty-one thousand, one hundred ninety-two".