1220101102121 has 8 divisors (see below), whose sum is σ = 1336882908384. Its totient is φ = 1104296549920.

The previous prime is 1220101102117. The next prime is 1220101102133. The reversal of 1220101102121 is 1212011010221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1220101102121 - 2² = 1220101102117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1220101102096 and 1220101102105.

It is not an unprimeable number, because it can be changed into a prime (1220101102151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244310900 + ... + 244315893.

It is an arithmetic number, because the mean of its divisors is an integer number (167110363548).

Almost surely, 2^{1220101102121} is an apocalyptic number.

1220101102121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1220101102121 is a deficient number, since it is larger than the sum of its proper divisors (116781806263).

1220101102121 is a wasteful number, since it uses less digits than its factorization.

1220101102121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488627031.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1220101102121 its reverse (1212011010221), we get a palindrome (2432112112342).

The spelling of 1220101102121 in words is "one trillion, two hundred twenty billion, one hundred one million, one hundred two thousand, one hundred twenty-one".