1211010101222 has 8 divisors (see below), whose sum is σ = 1834500450672. Its totient is φ = 599509951000.

The previous prime is 1211010101221. The next prime is 1211010101227. The reversal of 1211010101222 is 2221010101121.

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

It is a junction number, because it is equal to n+sod(n) for n = 1211010101197 and 1211010101206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211010101221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2997549554 + ... + 2997549957.

It is an arithmetic number, because the mean of its divisors is an integer number (229312556334).

Almost surely, 2^{1211010101222} is an apocalyptic number.

1211010101222 is a deficient number, since it is larger than the sum of its proper divisors (623490349450).

1211010101222 is a wasteful number, since it uses less digits than its factorization.

1211010101222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5995099614.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1211010101222 its reverse (2221010101121), we get a palindrome (3432020202343).

The spelling of 1211010101222 in words is "one trillion, two hundred eleven billion, ten million, one hundred one thousand, two hundred twenty-two".