1211223022444 has 12 divisors (see below), whose sum is σ = 2120021352904. Its totient is φ = 605502635904.

The previous prime is 1211223022409. The next prime is 1211223022469. The reversal of 1211223022444 is 4442203221121.

It is a super-2 number, since 2×1211223022444² (a number of 25 digits) contains 22 as substring.

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, 27193797 + ... + 27238300.

Almost surely, 2^{1211223022444} is an apocalyptic number.

It is an amenable number.

1211223022444 is a deficient number, since it is larger than the sum of its proper divisors (908798330460).

1211223022444 is a wasteful number, since it uses less digits than its factorization.

1211223022444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54437664 (or 54437662 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 1211223022444 its reverse (4442203221121), we get a palindrome (5653426243565).

The spelling of 1211223022444 in words is "one trillion, two hundred eleven billion, two hundred twenty-three million, twenty-two thousand, four hundred forty-four".