1211512150338 has 24 divisors (see below), whose sum is σ = 2818620105552. Its totient is φ = 346146328584.

The previous prime is 1211512150297. The next prime is 1211512150339. The reversal of 1211512150338 is 8330512151121.

It is a super-3 number, since 3×1211512150338³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1211512150299 and 1211512150308.

It is not an unprimeable number, because it can be changed into a prime (1211512150339) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2060394520 + ... + 2060395107.

It is an arithmetic number, because the mean of its divisors is an integer number (117442504398).

Almost surely, 2^{1211512150338} is an apocalyptic number.

1211512150338 is an abundant number, since it is smaller than the sum of its proper divisors (1607107955214).

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

1211512150338 is a wasteful number, since it uses less digits than its factorization.

1211512150338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4120789646 (or 4120789639 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 33.

The spelling of 1211512150338 in words is "one trillion, two hundred eleven billion, five hundred twelve million, one hundred fifty thousand, three hundred thirty-eight".