1021010221112 has 128 divisors (see below), whose sum is σ = 2344457088000. Its totient is φ = 415880809344.

The previous prime is 1021010221061. The next prime is 1021010221151. The reversal of 1021010221112 is 2111220101201.

It is a Harshad number since it is a multiple of its sum of digits (14).

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, 9857063 + ... + 9960105.

It is an arithmetic number, because the mean of its divisors is an integer number (18316071000).

Almost surely, 2^{1021010221112} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1021010221112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1172228544000).

1021010221112 is an abundant number, since it is smaller than the sum of its proper divisors (1323446866888).

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

1021010221112 is a wasteful number, since it uses less digits than its factorization.

1021010221112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103250 (or 103232 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1021010221112 its reverse (2111220101201), we get a palindrome (3132230322313).

The spelling of 1021010221112 in words is "one trillion, twenty-one billion, ten million, two hundred twenty-one thousand, one hundred twelve".