2111401502121 has 32 divisors (see below), whose sum is σ = 2920362762240. Its totient is φ = 1355291917056.

The previous prime is 2111401502117. The next prime is 2111401502173. The reversal of 2111401502121 is 1212051041112.

It is not a de Polignac number, because 2111401502121 - 2² = 2111401502117 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2111401502921) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 249954520 + ... + 249962966.

It is an arithmetic number, because the mean of its divisors is an integer number (91261336320).

Almost surely, 2^{2111401502121} is an apocalyptic number.

It is an amenable number.

2111401502121 is a deficient number, since it is larger than the sum of its proper divisors (808961260119).

2111401502121 is a wasteful number, since it uses less digits than its factorization.

2111401502121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16113.

The product of its (nonzero) digits is 160, while the sum is 21.

Adding to 2111401502121 its reverse (1212051041112), we get a palindrome (3323452543233).

The spelling of 2111401502121 in words is "two trillion, one hundred eleven billion, four hundred one million, five hundred two thousand, one hundred twenty-one".