1211021333132 has 48 divisors (see below), whose sum is σ = 2309680769760. Its totient is φ = 552269532672.

The previous prime is 1211021333117. The next prime is 1211021333147. The reversal of 1211021333132 is 2313331201121.

It is an interprime number because it is at equal distance from previous prime (1211021333117) and next prime (1211021333147).

It is a junction number, because it is equal to n+sod(n) for n = 1211021333098 and 1211021333107.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1047008 + ... + 1875704.

It is an arithmetic number, because the mean of its divisors is an integer number (48118349370).

Almost surely, 2^{1211021333132} is an apocalyptic number.

It is an amenable number.

1211021333132 is a deficient number, since it is larger than the sum of its proper divisors (1098659436628).

1211021333132 is a wasteful number, since it uses less digits than its factorization.

1211021333132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829050 (or 829048 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 1211021333132 its reverse (2313331201121), we get a palindrome (3524352534253).

The spelling of 1211021333132 in words is "one trillion, two hundred eleven billion, twenty-one million, three hundred thirty-three thousand, one hundred thirty-two".