1212402201101 has 16 divisors (see below), whose sum is σ = 1492248866304. Its totient is φ = 959223717504.

The previous prime is 1212402201067. The next prime is 1212402201139. The reversal of 1212402201101 is 1011022042121.

It is not a de Polignac number, because 1212402201101 - 2²² = 1212398006797 is a prime.

It is a super-2 number, since 2×1212402201101² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1212402201101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212402221101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2051465 + ... + 2575521.

It is an arithmetic number, because the mean of its divisors is an integer number (93265554144).

Almost surely, 2^{1212402201101} is an apocalyptic number.

It is an amenable number.

1212402201101 is a deficient number, since it is larger than the sum of its proper divisors (279846665203).

1212402201101 is a wasteful number, since it uses less digits than its factorization.

1212402201101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549500.

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

Adding to 1212402201101 its reverse (1011022042121), we get a palindrome (2223424243222).

The spelling of 1212402201101 in words is "one trillion, two hundred twelve billion, four hundred two million, two hundred one thousand, one hundred one".