1000021222190 has 8 divisors (see below), whose sum is σ = 1800038199960. Its totient is φ = 400008488872.

The previous prime is 1000021222183. The next prime is 1000021222201. The reversal of 1000021222190 is 912221200001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1000021222190² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50001061100 + ... + 50001061119.

It is an arithmetic number, because the mean of its divisors is an integer number (225004774995).

Almost surely, 2^{1000021222190} is an apocalyptic number.

1000021222190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1000021222190 is a deficient number, since it is larger than the sum of its proper divisors (800016977770).

1000021222190 is a wasteful number, since it uses less digits than its factorization.

1000021222190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100002122226.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 1000021222190 its reverse (912221200001), we get a palindrome (1912242422191).

The spelling of 1000021222190 in words is "one trillion, twenty-one million, two hundred twenty-two thousand, one hundred ninety".