1212202211101 has 16 divisors (see below), whose sum is σ = 1392745670784. Its totient is φ = 1033510823424.

The previous prime is 1212202211069. The next prime is 1212202211119. The reversal of 1212202211101 is 1011122022121.

It is a cyclic number.

It is not a de Polignac number, because 1212202211101 - 2⁵ = 1212202211069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212202211161) 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, 1213126 + ... + 1973848.

It is an arithmetic number, because the mean of its divisors is an integer number (87046604424).

Almost surely, 2^{1212202211101} is an apocalyptic number.

It is an amenable number.

1212202211101 is a deficient number, since it is larger than the sum of its proper divisors (180543459683).

1212202211101 is an equidigital number, since it uses as much as digits as its factorization.

1212202211101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761940.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1212202211101 its reverse (1011122022121), we get a palindrome (2223324233222).

The spelling of 1212202211101 in words is "one trillion, two hundred twelve billion, two hundred two million, two hundred eleven thousand, one hundred one".