1201001210101 has 32 divisors (see below), whose sum is σ = 1508158944000. Its totient is φ = 929114081280.

The previous prime is 1201001210039. The next prime is 1201001210111. The reversal of 1201001210101 is 1010121001021.

It is not a de Polignac number, because 1201001210101 - 2²³ = 1200992821493 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 (1201001210111) 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, 6127975 + ... + 6320923.

It is an arithmetic number, because the mean of its divisors is an integer number (47129967000).

Almost surely, 2^{1201001210101} is an apocalyptic number.

1201001210101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1201001210101 is a deficient number, since it is larger than the sum of its proper divisors (307157733899).

1201001210101 is a wasteful number, since it uses less digits than its factorization.

1201001210101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193549.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1201001210101 its reverse (1010121001021), we get a palindrome (2211122211122).

The spelling of 1201001210101 in words is "one trillion, two hundred one billion, one million, two hundred ten thousand, one hundred one".