1012221211122 has 40 divisors (see below), whose sum is σ = 2474318520432. Its totient is φ = 306733699800.

The previous prime is 1012221211063. The next prime is 1012221211231. The reversal of 1012221211122 is 2211121222101.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1012221211095 and 1012221211104.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 284010904 + ... + 284014467.

Almost surely, 2^{1012221211122} is an apocalyptic number.

1012221211122 is an abundant number, since it is smaller than the sum of its proper divisors (1462097309310).

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

1012221211122 is a wasteful number, since it uses less digits than its factorization.

1012221211122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568025396 (or 568025387 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 1012221211122 its reverse (2211121222101), we get a palindrome (3223342433223).

The spelling of 1012221211122 in words is "one trillion, twelve billion, two hundred twenty-one million, two hundred eleven thousand, one hundred twenty-two".