1222222021010 has 32 divisors (see below), whose sum is σ = 2416475583360. Its totient is φ = 443020520448.

The previous prime is 1222222020989. The next prime is 1222222021019. The reversal of 1222222021010 is 101202222221.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1222222021010.

It is not an unprimeable number, because it can be changed into a prime (1222222021019) 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, 139837967 + ... + 139846706.

It is an arithmetic number, because the mean of its divisors is an integer number (75514861980).

Almost surely, 2^{1222222021010} is an apocalyptic number.

1222222021010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1222222021010 is a deficient number, since it is larger than the sum of its proper divisors (1194253562350).

1222222021010 is a wasteful number, since it uses less digits than its factorization.

1222222021010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279684722.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1222222021010 its reverse (101202222221), we get a palindrome (1323424243231).

The spelling of 1222222021010 in words is "one trillion, two hundred twenty-two billion, two hundred twenty-two million, twenty-one thousand, ten".