1021200221110 has 8 divisors (see below), whose sum is σ = 1838160398016. Its totient is φ = 408480088440.

The previous prime is 1021200221089. The next prime is 1021200221177. The reversal of 1021200221110 is 111220021201.

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

It is a super-2 number, since 2×1021200221110² (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, 51060011046 + ... + 51060011065.

It is an arithmetic number, because the mean of its divisors is an integer number (229770049752).

Almost surely, 2^{1021200221110} is an apocalyptic number.

1021200221110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021200221110 is a deficient number, since it is larger than the sum of its proper divisors (816960176906).

1021200221110 is a wasteful number, since it uses less digits than its factorization.

1021200221110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102120022118.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1021200221110 its reverse (111220021201), we get a palindrome (1132420242311).

The spelling of 1021200221110 in words is "one trillion, twenty-one billion, two hundred million, two hundred twenty-one thousand, one hundred ten".