1222031401040 has 80 divisors (see below), whose sum is σ = 2993516497920. Its totient is φ = 462658936320.

The previous prime is 1222031401039. The next prime is 1222031401049. The reversal of 1222031401040 is 401041302221.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222031401049) 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, 1282430 + ... + 2022050.

It is an arithmetic number, because the mean of its divisors is an integer number (37418956224).

Almost surely, 2^{1222031401040} is an apocalyptic number.

1222031401040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1222031401040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1496758248960).

1222031401040 is an abundant number, since it is smaller than the sum of its proper divisors (1771485096880).

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

1222031401040 is a wasteful number, since it uses less digits than its factorization.

1222031401040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740740 (or 740734 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 1222031401040 its reverse (401041302221), we get a palindrome (1623072703261).

The spelling of 1222031401040 in words is "one trillion, two hundred twenty-two billion, thirty-one million, four hundred one thousand, forty".