1211110022 has 16 divisors (see below), whose sum is σ = 1924216560. Its totient is φ = 569730048.

The previous prime is 1211110013. The next prime is 1211110031. The reversal of 1211110022 is 2200111121.

It is an interprime number because it is at equal distance from previous prime (1211110013) and next prime (1211110031).

It is a junction number, because it is equal to n+sod(n) for n = 1211109985 and 1211110012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136073 + ... + 144699.

It is an arithmetic number, because the mean of its divisors is an integer number (120263535).

Almost surely, 2^1211110022 is an apocalyptic number.

1211110022 is a deficient number, since it is larger than the sum of its proper divisors (713106538).

1211110022 is a wasteful number, since it uses less digits than its factorization.

1211110022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12775.

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

The square root of 1211110022 is about 34801.0060486762. The cubic root of 1211110022 is about 1065.9279889450.

Adding to 1211110022 its reverse (2200111121), we get a palindrome (3411221143).

The spelling of 1211110022 in words is "one billion, two hundred eleven million, one hundred ten thousand, twenty-two".