1211010222210 has 16 divisors (see below), whose sum is σ = 2906424533376. Its totient is φ = 322936059248.

The previous prime is 1211010222209. The next prime is 1211010222217. The reversal of 1211010222210 is 122220101121.

It is a super-2 number, since 2×1211010222210² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1211010222210.

It is not an unprimeable number, because it can be changed into a prime (1211010222217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20183503674 + ... + 20183503733.

It is an arithmetic number, because the mean of its divisors is an integer number (181651533336).

Almost surely, 2^{1211010222210} is an apocalyptic number.

1211010222210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211010222210 is an abundant number, since it is smaller than the sum of its proper divisors (1695414311166).

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

1211010222210 is a wasteful number, since it uses less digits than its factorization.

1211010222210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40367007417.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1211010222210 its reverse (122220101121), we get a palindrome (1333230323331).

The spelling of 1211010222210 in words is "one trillion, two hundred eleven billion, ten million, two hundred twenty-two thousand, two hundred ten".