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2221020020012 = 222332383068691
BaseRepresentation
bin100000010100011111000…
…110111111110100101100
321212022211201000012010012
4200110133012333310230
5242342122111120022
64420153355032352
7316314642451163
oct40243706776454
97768751005105
102221020020012
11786a24999152
122ba54713b6b8
131315976878c1
14796d84d63da
153cb91a05de2
hex2051f1bfd2c

2221020020012 has 12 divisors (see below), whose sum is σ = 3903466517496. Its totient is φ = 1105743872160.

The previous prime is 2221020020003. The next prime is 2221020020017. The reversal of 2221020020012 is 2100200201222.

It is not an unprimeable number, because it can be changed into a prime (2221020020017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1191533414 + ... + 1191535277.

It is an arithmetic number, because the mean of its divisors is an integer number (325288876458).

Almost surely, 22221020020012 is an apocalyptic number.

It is an amenable number.

2221020020012 is a deficient number, since it is larger than the sum of its proper divisors (1682446497484).

2221020020012 is a wasteful number, since it uses less digits than its factorization.

2221020020012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2383068928 (or 2383068926 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 2221020020012 its reverse (2100200201222), we get a palindrome (4321220221234).

The spelling of 2221020020012 in words is "two trillion, two hundred twenty-one billion, twenty million, twenty thousand, twelve".

Divisors: 1 2 4 233 466 932 2383068691 4766137382 9532274764 555255005003 1110510010006 2221020020012