1211402010122 has 16 divisors (see below), whose sum is σ = 1898976085632. Its totient is φ = 578489664720.

The previous prime is 1211402010101. The next prime is 1211402010179. The reversal of 1211402010122 is 2210102041121.

It is a super-3 number, since 3×1211402010122³ (a number of 37 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1211402010122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19890038 + ... + 19950849.

It is an arithmetic number, because the mean of its divisors is an integer number (118686005352).

Almost surely, 2^{1211402010122} is an apocalyptic number.

1211402010122 is a deficient number, since it is larger than the sum of its proper divisors (687574075510).

1211402010122 is a wasteful number, since it uses less digits than its factorization.

1211402010122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39841573.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1211402010122 its reverse (2210102041121), we get a palindrome (3421504051243).

The spelling of 1211402010122 in words is "one trillion, two hundred eleven billion, four hundred two million, ten thousand, one hundred twenty-two".