1211223222130 has 64 divisors (see below), whose sum is σ = 2257200608256. Its totient is φ = 467661600000.

The previous prime is 1211223222061. The next prime is 1211223222137. The reversal of 1211223222130 is 312223221121.

It is not an unprimeable number, because it can be changed into a prime (1211223222137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23469855 + ... + 23521405.

It is an arithmetic number, because the mean of its divisors is an integer number (35268759504).

Almost surely, 2^{1211223222130} is an apocalyptic number.

1211223222130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211223222130 is a deficient number, since it is larger than the sum of its proper divisors (1045977386126).

1211223222130 is a wasteful number, since it uses less digits than its factorization.

1211223222130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52243.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 1211223222130 its reverse (312223221121), we get a palindrome (1523446443251).

The spelling of 1211223222130 in words is "one trillion, two hundred eleven billion, two hundred twenty-three million, two hundred twenty-two thousand, one hundred thirty".