1211020040122 has 8 divisors (see below), whose sum is σ = 1816535378196. Its totient is φ = 605508247392.

The previous prime is 1211020040101. The next prime is 1211020040137. The reversal of 1211020040122 is 2210400201121.

It can be written as a sum of positive squares in 2 ways, for example, as 888760593081 + 322259447041 = 942741^2 + 567679^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×1211020040122³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1211020040096 and 1211020040105.

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, 268608 + ... + 1579300.

Almost surely, 2^{1211020040122} is an apocalyptic number.

1211020040122 is a deficient number, since it is larger than the sum of its proper divisors (605515338074).

1211020040122 is a wasteful number, since it uses less digits than its factorization.

1211020040122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1772672.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1211020040122 its reverse (2210400201121), we get a palindrome (3421420241243).

The spelling of 1211020040122 in words is "one trillion, two hundred eleven billion, twenty million, forty thousand, one hundred twenty-two".