1212000021122 has 8 divisors (see below), whose sum is σ = 1983272761872. Its totient is φ = 550909100500.

The previous prime is 1212000021097. The next prime is 1212000021209. The reversal of 1212000021122 is 2211200002121.

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

It is a super-2 number, since 2×1212000021122² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1212000021097 and 1212000021106.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27545455004 + ... + 27545455047.

It is an arithmetic number, because the mean of its divisors is an integer number (247909095234).

Almost surely, 2^{1212000021122} is an apocalyptic number.

1212000021122 is a deficient number, since it is larger than the sum of its proper divisors (771272740750).

1212000021122 is a wasteful number, since it uses less digits than its factorization.

1212000021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55090910064.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1212000021122 its reverse (2211200002121), we get a palindrome (3423200023243).

The spelling of 1212000021122 in words is "one trillion, two hundred twelve billion, twenty-one thousand, one hundred twenty-two".