1011221000210 has 32 divisors (see below), whose sum is σ = 1859402656512. Its totient is φ = 395780629120.

The previous prime is 1011221000201. The next prime is 1011221000213. The reversal of 1011221000210 is 120001221101.

It is a super-2 number, since 2×1011221000210² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1011221000191 and 1011221000200.

It is not an unprimeable number, because it can be changed into a prime (1011221000213) 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, 1569590 + ... + 2118030.

It is an arithmetic number, because the mean of its divisors is an integer number (58106333016).

Almost surely, 2^{1011221000210} is an apocalyptic number.

1011221000210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1011221000210 is a deficient number, since it is larger than the sum of its proper divisors (848181656302).

1011221000210 is a wasteful number, since it uses less digits than its factorization.

1011221000210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552418.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1011221000210 its reverse (120001221101), we get a palindrome (1131222221311).

The spelling of 1011221000210 in words is "one trillion, eleven billion, two hundred twenty-one million, two hundred ten", and thus it is an aban number.