1211022411044 has 6 divisors (see below), whose sum is σ = 2119289219334. Its totient is φ = 605511205520.

The previous prime is 1211022410981. The next prime is 1211022411119. The reversal of 1211022411044 is 4401142201121.

It can be written as a sum of positive squares in only one way, i.e., 1210083601444 + 938809600 = 1100038^2 + 30640^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151377801377 + ... + 151377801384.

It is an arithmetic number, because the mean of its divisors is an integer number (353214869889).

Almost surely, 2^{1211022411044} is an apocalyptic number.

It is an amenable number.

1211022411044 is a deficient number, since it is larger than the sum of its proper divisors (908266808290).

1211022411044 is a wasteful number, since it uses less digits than its factorization.

1211022411044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302755602765 (or 302755602763 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 1211022411044 its reverse (4401142201121), we get a palindrome (5612164612165).

The spelling of 1211022411044 in words is "one trillion, two hundred eleven billion, twenty-two million, four hundred eleven thousand, forty-four".